diff --git a/README.md b/README.md
index 0f0007e..3daf4a2 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,43 @@ else {
 }
 ```
 
+## Redis session storage
+
+This package now includes `Gt\Session\RedisHandler` for shared session storage.
+It works with Redis-compatible backends such as Redis and Valkey, and is intended
+for deployments where application nodes are disposable and session state needs to
+survive traffic moving between servers.
+
+`RedisHandler` expects `save_path` to be a DSN rather than a filesystem path.
+It uses the `phpredis` extension at runtime.
+
+Example production config:
+
+```ini
+[session]
+handler=Gt\Session\RedisHandler
+save_path=rediss://default:secret@example-redis.internal:25061/0?prefix=GT:&ttl=1440
+name=GT
+use_cookies=true
+```
+
+Supported DSN forms:
+
+- `redis://host:6379`
+- `redis://:password@host:6379/0`
+- `redis://username:password@host:6379/0`
+- `rediss://username:password@host:6379/0`
+
+Useful query parameters:
+
+- `prefix`: key prefix for stored sessions, defaults to `<session-name>:`
+- `ttl`: session lifetime in seconds, defaults to `session.gc_maxlifetime`
+- `timeout`: connection timeout in seconds
+- `read_timeout`: socket read timeout in seconds
+- `persistent=1`: enable persistent connections
+- `persistent_id`: optional persistent connection pool id
+- `verify_peer=0` / `verify_peer_name=0`: optional TLS verification flags
+
 # Proudly sponsored by
 
 [JetBrains Open Source sponsorship program](https://www.jetbrains.com/community/opensource/)
diff --git a/composer.json b/composer.json
index 48ab401..78112b0 100644
--- a/composer.json
+++ b/composer.json
@@ -7,6 +7,9 @@
 		"php": ">=8.2",
 		"phpgt/typesafegetter": "^1.3"
 	},
+	"suggest": {
+		"ext-redis": "Required to use Gt\\Session\\RedisHandler."
+	},
 	"require-dev": {
 		"phpstan/phpstan": "^2.1",
 		"phpunit/phpunit": "^10.1",
@@ -14,6 +17,20 @@
 		"squizlabs/php_codesniffer": "^3.7"
 	},
 
+	"scripts": {
+		"phpunit": "vendor/bin/phpunit --configuration phpunit.xml",
+		"phpunit:coverage": "XDEBUG_MODE=coverage vendor/bin/phpunit --configuration phpunit.xml --coverage-text",
+		"phpstan": "vendor/bin/phpstan analyse --level 6 src",
+		"phpcs": "vendor/bin/phpcs src --standard=phpcs.xml",
+		"phpmd": "vendor/bin/phpmd src/ text phpmd.xml",
+		"test": [
+			"@phpunit",
+			"@phpstan",
+			"@phpcs",
+			"@phpmd"
+		]
+	},
+
 	"autoload": {
 		"psr-4": {
 			"Gt\\Session\\": "./src"
diff --git a/composer.lock b/composer.lock
index 49e9755..42fa268 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "90f742569783bb1b522aa97fe7d3d045",
+    "content-hash": "5bf8b129b89ebdbd2f4b53a66a2b077e",
     "packages": [
         {
             "name": "phpgt/typesafegetter",
-            "version": "v1.3.2",
+            "version": "v1.3.3",
             "source": {
                 "type": "git",
-                "url": "https://github.com/PhpGt/TypeSafeGetter.git",
-                "reference": "f760c05a37b1cc188dcbf800c5fdfab8a926b4b0"
+                "url": "https://github.com/phpgt/TypeSafeGetter.git",
+                "reference": "a0d339103828791989cbb81f760d252f3c2f8b8c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PhpGt/TypeSafeGetter/zipball/f760c05a37b1cc188dcbf800c5fdfab8a926b4b0",
-                "reference": "f760c05a37b1cc188dcbf800c5fdfab8a926b4b0",
+                "url": "https://api.github.com/repos/phpgt/TypeSafeGetter/zipball/a0d339103828791989cbb81f760d252f3c2f8b8c",
+                "reference": "a0d339103828791989cbb81f760d252f3c2f8b8c",
                 "shasum": ""
             },
             "require": {
@@ -47,8 +47,8 @@
             ],
             "description": "An interface for objects that expose type-safe getter methods.",
             "support": {
-                "issues": "https://github.com/PhpGt/TypeSafeGetter/issues",
-                "source": "https://github.com/PhpGt/TypeSafeGetter/tree/v1.3.2"
+                "issues": "https://github.com/phpgt/TypeSafeGetter/issues",
+                "source": "https://github.com/phpgt/TypeSafeGetter/tree/v1.3.3"
             },
             "funding": [
                 {
@@ -56,7 +56,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2023-04-28T14:42:27+00:00"
+            "time": "2026-03-10T22:28:01+00:00"
         }
     ],
     "packages-dev": [
@@ -207,16 +207,16 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.13.3",
+            "version": "1.13.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "faed855a7b5f4d4637717c2b3863e277116beb36"
+                "reference": "07d290f0c47959fd5eed98c95ee5602db07e0b6a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/faed855a7b5f4d4637717c2b3863e277116beb36",
-                "reference": "faed855a7b5f4d4637717c2b3863e277116beb36",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/07d290f0c47959fd5eed98c95ee5602db07e0b6a",
+                "reference": "07d290f0c47959fd5eed98c95ee5602db07e0b6a",
                 "shasum": ""
             },
             "require": {
@@ -255,7 +255,7 @@
             ],
             "support": {
                 "issues": "https://github.com/myclabs/DeepCopy/issues",
-                "source": "https://github.com/myclabs/DeepCopy/tree/1.13.3"
+                "source": "https://github.com/myclabs/DeepCopy/tree/1.13.4"
             },
             "funding": [
                 {
@@ -263,20 +263,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-05T12:25:42+00:00"
+            "time": "2025-08-01T08:46:24+00:00"
         },
         {
             "name": "nikic/php-parser",
-            "version": "v5.6.0",
+            "version": "v5.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "221b0d0fdf1369c71047ad1d18bb5880017bbc56"
+                "reference": "dca41cd15c2ac9d055ad70dbfd011130757d1f82"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/221b0d0fdf1369c71047ad1d18bb5880017bbc56",
-                "reference": "221b0d0fdf1369c71047ad1d18bb5880017bbc56",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/dca41cd15c2ac9d055ad70dbfd011130757d1f82",
+                "reference": "dca41cd15c2ac9d055ad70dbfd011130757d1f82",
                 "shasum": ""
             },
             "require": {
@@ -295,7 +295,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "5.0-dev"
+                    "dev-master": "5.x-dev"
                 }
             },
             "autoload": {
@@ -319,9 +319,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v5.6.0"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v5.7.0"
             },
-            "time": "2025-07-27T20:03:57+00:00"
+            "time": "2025-12-06T11:56:16+00:00"
         },
         {
             "name": "pdepend/pdepend",
@@ -589,16 +589,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.21",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "1ccf445757458c06a04eb3f803603cb118fe5fa6"
-            },
+            "version": "2.1.40",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/1ccf445757458c06a04eb3f803603cb118fe5fa6",
-                "reference": "1ccf445757458c06a04eb3f803603cb118fe5fa6",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
+                "reference": "9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
                 "shasum": ""
             },
             "require": {
@@ -643,7 +638,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-07-28T19:35:08+00:00"
+            "time": "2026-02-23T15:04:35+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -968,16 +963,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.48",
+            "version": "10.5.63",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "6e0a2bc39f6fae7617989d690d76c48e6d2eb541"
+                "reference": "33198268dad71e926626b618f3ec3966661e4d90"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/6e0a2bc39f6fae7617989d690d76c48e6d2eb541",
-                "reference": "6e0a2bc39f6fae7617989d690d76c48e6d2eb541",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/33198268dad71e926626b618f3ec3966661e4d90",
+                "reference": "33198268dad71e926626b618f3ec3966661e4d90",
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@@ -987,7 +982,7 @@
                 "ext-mbstring": "*",
                 "ext-xml": "*",
                 "ext-xmlwriter": "*",
-                "myclabs/deep-copy": "^1.13.3",
+                "myclabs/deep-copy": "^1.13.4",
                 "phar-io/manifest": "^2.0.4",
                 "phar-io/version": "^3.2.1",
                 "php": ">=8.1",
@@ -998,13 +993,13 @@
                 "phpunit/php-timer": "^6.0.0",
                 "sebastian/cli-parser": "^2.0.1",
                 "sebastian/code-unit": "^2.0.0",
-                "sebastian/comparator": "^5.0.3",
+                "sebastian/comparator": "^5.0.5",
                 "sebastian/diff": "^5.1.1",
                 "sebastian/environment": "^6.1.0",
-                "sebastian/exporter": "^5.1.2",
+                "sebastian/exporter": "^5.1.4",
                 "sebastian/global-state": "^6.0.2",
                 "sebastian/object-enumerator": "^5.0.0",
-                "sebastian/recursion-context": "^5.0.0",
+                "sebastian/recursion-context": "^5.0.1",
                 "sebastian/type": "^4.0.0",
                 "sebastian/version": "^4.0.1"
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@@ -1049,7 +1044,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.48"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.63"
             },
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                 {
@@ -1073,7 +1068,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-11T04:07:17+00:00"
+            "time": "2026-01-27T05:48:37+00:00"
         },
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             "name": "psr/container",
@@ -1348,16 +1343,16 @@
         },
         {
             "name": "sebastian/comparator",
-            "version": "5.0.3",
+            "version": "5.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "a18251eb0b7a2dcd2f7aa3d6078b18545ef0558e"
+                "reference": "55dfef806eb7dfeb6e7a6935601fef866f8ca48d"
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-                "reference": "a18251eb0b7a2dcd2f7aa3d6078b18545ef0558e",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/55dfef806eb7dfeb6e7a6935601fef866f8ca48d",
+                "reference": "55dfef806eb7dfeb6e7a6935601fef866f8ca48d",
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@@ -1413,15 +1408,27 @@
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                 "security": "https://github.com/sebastianbergmann/comparator/security/policy",
-                "source": "https://github.com/sebastianbergmann/comparator/tree/5.0.3"
+                "source": "https://github.com/sebastianbergmann/comparator/tree/5.0.5"
             },
             "funding": [
                 {
                     "url": "https://github.com/sebastianbergmann",
                     "type": "github"
+                },
+                {
+                    "url": "https://liberapay.com/sebastianbergmann",
+                    "type": "liberapay"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/sebastianbergmann",
+                    "type": "thanks_dev"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/sebastian/comparator",
+                    "type": "tidelift"
                 }
             ],
-            "time": "2024-10-18T14:56:07+00:00"
+            "time": "2026-01-24T09:25:16+00:00"
         },
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@@ -1614,16 +1621,16 @@
         },
         {
             "name": "sebastian/exporter",
-            "version": "5.1.2",
+            "version": "5.1.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
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@@ -1632,7 +1639,7 @@
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+                "phpunit/phpunit": "^10.5"
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@@ -1680,15 +1687,27 @@
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                 "security": "https://github.com/sebastianbergmann/exporter/security/policy",
-                "source": "https://github.com/sebastianbergmann/exporter/tree/5.1.2"
+                "source": "https://github.com/sebastianbergmann/exporter/tree/5.1.4"
             },
             "funding": [
                 {
                     "url": "https://github.com/sebastianbergmann",
                     "type": "github"
+                },
+                {
+                    "url": "https://liberapay.com/sebastianbergmann",
+                    "type": "liberapay"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/sebastianbergmann",
+                    "type": "thanks_dev"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/sebastian/exporter",
+                    "type": "tidelift"
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-            "time": "2024-03-02T07:17:12+00:00"
+            "time": "2025-09-24T06:09:11+00:00"
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@@ -1924,23 +1943,23 @@
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-            "version": "5.0.0",
+            "version": "5.0.1",
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-                "reference": "05909fb5bc7df4c52992396d0116aed689f93712"
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+                "phpunit/phpunit": "^10.5"
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@@ -1975,15 +1994,28 @@
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                 "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
-                "source": "https://github.com/sebastianbergmann/recursion-context/tree/5.0.0"
+                "security": "https://github.com/sebastianbergmann/recursion-context/security/policy",
+                "source": "https://github.com/sebastianbergmann/recursion-context/tree/5.0.1"
             },
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                     "url": "https://github.com/sebastianbergmann",
                     "type": "github"
+                },
+                {
+                    "url": "https://liberapay.com/sebastianbergmann",
+                    "type": "liberapay"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/sebastianbergmann",
+                    "type": "thanks_dev"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/sebastian/recursion-context",
+                    "type": "tidelift"
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-            "time": "2023-02-03T07:05:40+00:00"
+            "time": "2025-08-10T07:50:56+00:00"
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@@ -2096,16 +2128,16 @@
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-            "version": "3.13.2",
+            "version": "3.13.5",
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@@ -2122,11 +2154,6 @@
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@@ -2176,26 +2203,26 @@
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                 "symfony/deprecation-contracts": "^2.5|^3",
-                "symfony/filesystem": "^7.1",
+                "symfony/filesystem": "^7.1|^8.0",
                 "symfony/polyfill-ctype": "~1.8"
             },
             "conflict": {
@@ -2203,11 +2230,11 @@
                 "symfony/service-contracts": "<2.5"
             },
             "require-dev": {
-                "symfony/event-dispatcher": "^6.4|^7.0",
-                "symfony/finder": "^6.4|^7.0",
-                "symfony/messenger": "^6.4|^7.0",
+                "symfony/event-dispatcher": "^6.4|^7.0|^8.0",
+                "symfony/finder": "^6.4|^7.0|^8.0",
+                "symfony/messenger": "^6.4|^7.0|^8.0",
                 "symfony/service-contracts": "^2.5|^3",
-                "symfony/yaml": "^6.4|^7.0"
+                "symfony/yaml": "^6.4|^7.0|^8.0"
             },
             "type": "library",
             "autoload": {
@@ -2235,7 +2262,7 @@
             "description": "Helps you find, load, combine, autofill and validate configuration values of any kind",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/config/tree/v7.3.2"
+                "source": "https://github.com/symfony/config/tree/v7.4.7"
             },
             "funding": [
                 {
@@ -2255,28 +2282,28 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-26T13:55:06+00:00"
+            "time": "2026-03-06T10:41:14+00:00"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v7.3.2",
+            "version": "v7.4.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "6cd2a1a77e8a0676a26e8bcddf10acfe7b0ba352"
+                "reference": "0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/6cd2a1a77e8a0676a26e8bcddf10acfe7b0ba352",
-                "reference": "6cd2a1a77e8a0676a26e8bcddf10acfe7b0ba352",
+                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db",
+                "reference": "0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db",
                 "shasum": ""
             },
             "require": {
                 "php": ">=8.2",
                 "psr/container": "^1.1|^2.0",
                 "symfony/deprecation-contracts": "^2.5|^3",
-                "symfony/service-contracts": "^3.5",
-                "symfony/var-exporter": "^6.4.20|^7.2.5"
+                "symfony/service-contracts": "^3.6",
+                "symfony/var-exporter": "^6.4.20|^7.2.5|^8.0"
             },
             "conflict": {
                 "ext-psr": "<1.1|>=2",
@@ -2289,9 +2316,9 @@
                 "symfony/service-implementation": "1.1|2.0|3.0"
             },
             "require-dev": {
-                "symfony/config": "^6.4|^7.0",
-                "symfony/expression-language": "^6.4|^7.0",
-                "symfony/yaml": "^6.4|^7.0"
+                "symfony/config": "^6.4|^7.0|^8.0",
+                "symfony/expression-language": "^6.4|^7.0|^8.0",
+                "symfony/yaml": "^6.4|^7.0|^8.0"
             },
             "type": "library",
             "autoload": {
@@ -2319,7 +2346,7 @@
             "description": "Allows you to standardize and centralize the way objects are constructed in your application",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/dependency-injection/tree/v7.3.2"
+                "source": "https://github.com/symfony/dependency-injection/tree/v7.4.7"
             },
             "funding": [
                 {
@@ -2339,7 +2366,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-30T17:31:46+00:00"
+            "time": "2026-03-03T07:48:48+00:00"
         },
         {
             "name": "symfony/deprecation-contracts",
@@ -2410,16 +2437,16 @@
         },
         {
             "name": "symfony/filesystem",
-            "version": "v7.3.2",
+            "version": "v7.4.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "edcbb768a186b5c3f25d0643159a787d3e63b7fd"
+                "reference": "3ebc794fa5315e59fd122561623c2e2e4280538e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/edcbb768a186b5c3f25d0643159a787d3e63b7fd",
-                "reference": "edcbb768a186b5c3f25d0643159a787d3e63b7fd",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/3ebc794fa5315e59fd122561623c2e2e4280538e",
+                "reference": "3ebc794fa5315e59fd122561623c2e2e4280538e",
                 "shasum": ""
             },
             "require": {
@@ -2428,7 +2455,7 @@
                 "symfony/polyfill-mbstring": "~1.8"
             },
             "require-dev": {
-                "symfony/process": "^6.4|^7.0"
+                "symfony/process": "^6.4|^7.0|^8.0"
             },
             "type": "library",
             "autoload": {
@@ -2456,7 +2483,7 @@
             "description": "Provides basic utilities for the filesystem",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/filesystem/tree/v7.3.2"
+                "source": "https://github.com/symfony/filesystem/tree/v7.4.6"
             },
             "funding": [
                 {
@@ -2476,11 +2503,11 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-07T08:17:47+00:00"
+            "time": "2026-02-25T16:50:00+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.32.0",
+            "version": "v1.33.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
@@ -2539,7 +2566,7 @@
                 "portable"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.32.0"
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.33.0"
             },
             "funding": [
                 {
@@ -2550,6 +2577,10 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
@@ -2559,7 +2590,7 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.32.0",
+            "version": "v1.33.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
@@ -2620,7 +2651,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.32.0"
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.33.0"
             },
             "funding": [
                 {
@@ -2631,6 +2662,10 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
@@ -2640,16 +2675,16 @@
         },
         {
             "name": "symfony/service-contracts",
-            "version": "v3.6.0",
+            "version": "v3.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/service-contracts.git",
-                "reference": "f021b05a130d35510bd6b25fe9053c2a8a15d5d4"
+                "reference": "45112560a3ba2d715666a509a0bc9521d10b6c43"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/f021b05a130d35510bd6b25fe9053c2a8a15d5d4",
-                "reference": "f021b05a130d35510bd6b25fe9053c2a8a15d5d4",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/45112560a3ba2d715666a509a0bc9521d10b6c43",
+                "reference": "45112560a3ba2d715666a509a0bc9521d10b6c43",
                 "shasum": ""
             },
             "require": {
@@ -2703,7 +2738,7 @@
                 "standards"
             ],
             "support": {
-                "source": "https://github.com/symfony/service-contracts/tree/v3.6.0"
+                "source": "https://github.com/symfony/service-contracts/tree/v3.6.1"
             },
             "funding": [
                 {
@@ -2714,25 +2749,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-04-25T09:37:31+00:00"
+            "time": "2025-07-15T11:30:57+00:00"
         },
         {
             "name": "symfony/var-exporter",
-            "version": "v7.3.2",
+            "version": "v7.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/var-exporter.git",
-                "reference": "05b3e90654c097817325d6abd284f7938b05f467"
+                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/05b3e90654c097817325d6abd284f7938b05f467",
-                "reference": "05b3e90654c097817325d6abd284f7938b05f467",
+                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/03a60f169c79a28513a78c967316fbc8bf17816f",
+                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f",
                 "shasum": ""
             },
             "require": {
@@ -2740,9 +2779,9 @@
                 "symfony/deprecation-contracts": "^2.5|^3"
             },
             "require-dev": {
-                "symfony/property-access": "^6.4|^7.0",
-                "symfony/serializer": "^6.4|^7.0",
-                "symfony/var-dumper": "^6.4|^7.0"
+                "symfony/property-access": "^6.4|^7.0|^8.0",
+                "symfony/serializer": "^6.4|^7.0|^8.0",
+                "symfony/var-dumper": "^6.4|^7.0|^8.0"
             },
             "type": "library",
             "autoload": {
@@ -2780,7 +2819,7 @@
                 "serialize"
             ],
             "support": {
-                "source": "https://github.com/symfony/var-exporter/tree/v7.3.2"
+                "source": "https://github.com/symfony/var-exporter/tree/v7.4.0"
             },
             "funding": [
                 {
@@ -2800,20 +2839,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-07-10T08:47:49+00:00"
+            "time": "2025-09-11T10:15:23+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.2.3",
+            "version": "1.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2"
+                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
-                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/b7489ce515e168639d17feec34b8847c326b0b3c",
+                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c",
                 "shasum": ""
             },
             "require": {
@@ -2842,7 +2881,7 @@
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
             "support": {
                 "issues": "https://github.com/theseer/tokenizer/issues",
-                "source": "https://github.com/theseer/tokenizer/tree/1.2.3"
+                "source": "https://github.com/theseer/tokenizer/tree/1.3.1"
             },
             "funding": [
                 {
@@ -2850,7 +2889,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-03-03T12:36:25+00:00"
+            "time": "2025-11-17T20:03:58+00:00"
         }
     ],
     "aliases": [],
@@ -2859,8 +2898,8 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.1"
+        "php": ">=8.2"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }
diff --git a/phpcs.xml b/phpcs.xml
index ad96b86..2d2aff4 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -19,7 +19,11 @@
 	<rule ref="Generic.Files.EndFileNewline" />
 	<rule ref="Generic.Files.InlineHTML" />
 	<rule ref="Generic.Files.LineEndings" />
-	<rule ref="Generic.Files.LineLength" />
+	<rule ref="Generic.Files.LineLength">
+		<properties>
+			<property name="lineLimit" value="100" />
+		</properties>
+	</rule>
 	<rule ref="Generic.Files.OneClassPerFile" />
 	<rule ref="Generic.Files.OneInterfacePerFile" />
 	<rule ref="Generic.Files.OneObjectStructurePerFile" />
diff --git a/phpmd.xml b/phpmd.xml
index c30e0b4..d125c4d 100644
--- a/phpmd.xml
+++ b/phpmd.xml
@@ -25,7 +25,16 @@
 		<exclude name="ShortMethodName" />
 	</rule>
 
-	<rule ref="rulesets/unusedcode.xml">
+	<rule ref="rulesets/unusedcode.xml/UnusedPrivateField">
+	</rule>
+
+	<rule ref="rulesets/unusedcode.xml/UnusedLocalVariable">
+	</rule>
+
+	<rule ref="rulesets/unusedcode.xml/UnusedPrivateMethod">
+	</rule>
+
+	<rule ref="rulesets/unusedcode.xml/UnusedFormalParameter">
 	</rule>
 
 	<rule ref="rulesets/naming.xml/ShortVariable">
diff --git a/src/Flash.php b/src/Flash.php
index 0e1e7c6..69c3aa4 100644
--- a/src/Flash.php
+++ b/src/Flash.php
@@ -5,7 +5,7 @@
 use SplQueue;
 
 class Flash {
-	public function __construct(private readonly SessionStore $session) {}
+	public function __construct(private readonly SessionStoreInterface $session) {}
 
 	public function put(string $name, string $message):void {
 		$queue = $this->session->get("queue.$name");
diff --git a/src/RedisHandler.php b/src/RedisHandler.php
new file mode 100644
index 0000000..9bda88a
--- /dev/null
+++ b/src/RedisHandler.php
@@ -0,0 +1,222 @@
+<?php
+namespace Gt\Session;
+
+use Redis;
+use RuntimeException;
+
+class RedisHandler extends Handler {
+	private const DEFAULT_PORT = 6379;
+	private const DEFAULT_PREFIX_SEPARATOR = ":";
+	private ?Redis $client = null;
+	private string $prefix = "";
+	private int $ttl = 0;
+
+	public function open(string $savePath, string $name):bool {
+		$config = $this->parseSavePath($savePath, $name);
+		$client = $this->createClient();
+
+		$connected = $client->connect(
+			$config["host"],
+			$config["port"],
+			$config["timeout"],
+			$config["persistentId"],
+			0,
+			$config["readTimeout"],
+			$config["context"],
+		);
+
+		if(!$connected) {
+			return false;
+		}
+
+		if($config["auth"] !== null && !$client->auth($config["auth"])) {
+			return false;
+		}
+
+		if($config["database"] > 0 && !$client->select($config["database"])) {
+			return false;
+		}
+
+		$this->client = $client;
+		$this->prefix = $config["prefix"];
+		$this->ttl = $config["ttl"];
+		return true;
+	}
+
+	public function close():bool {
+		if(is_null($this->client)) {
+			return true;
+		}
+
+		return $this->client->close();
+	}
+
+	public function read(string $sessionId):string {
+		$value = $this->requireClient()->get($this->getKey($sessionId));
+		return is_string($value) ? $value : "";
+	}
+
+	public function write(string $sessionId, string $sessionData):bool {
+		$client = $this->requireClient();
+		$key = $this->getKey($sessionId);
+
+		if($this->ttl > 0) {
+			return $client->setEx($key, $this->ttl, $sessionData);
+		}
+
+		return $client->set($key, $sessionData);
+	}
+
+	public function destroy(string $id = ""):bool {
+		return $this->requireClient()->del($this->getKey($id)) >= 0;
+	}
+
+	// phpcs:disable Generic.CodeAnalysis.UnusedFunctionParameter.FoundInExtendedClass
+	public function gc(int $maxLifeTime):int|false {
+		return 0;
+	}
+	// phpcs:enable
+
+	/**
+	 * @return array{
+	 *   host:string,
+	 *   port:int,
+	 *   timeout:float,
+	 *   readTimeout:float,
+	 *   persistentId:?string,
+	 *   prefix:string,
+	 *   ttl:int,
+	 *   database:int,
+	 *   auth:array{string,string}|string|null,
+	 *   context:array{stream:array{verify_peer:bool,verify_peer_name:bool}}|null
+	 * }
+	 */
+	private function parseSavePath(string $savePath, string $name):array {
+		$parts = parse_url($savePath);
+		if($parts === false || !isset($parts["host"])) {
+			throw new RuntimeException("Invalid Redis save_path DSN.");
+		}
+
+		parse_str($parts["query"] ?? "", $query);
+
+		[$host, $context] = $this->parseHostAndContext($parts, $query);
+
+		return [
+			"host" => $host,
+			"port" => (int)($parts["port"] ?? self::DEFAULT_PORT),
+			"timeout" => (float)($query["timeout"] ?? 0),
+			"readTimeout" => (float)($query["read_timeout"] ?? 0),
+			"persistentId" => $this->parsePersistentId($query),
+			"prefix" => $this->parsePrefix($query, $name),
+			"ttl" => (int)($query["ttl"] ?? ini_get("session.gc_maxlifetime")),
+			"database" => $this->parseDatabase($parts),
+			"auth" => $this->parseAuth($parts),
+			"context" => $context,
+		];
+	}
+
+	/**
+	 * @param array<string,mixed> $parts
+	 * @param array<string,mixed> $query
+	 * @return array{
+	 *   0:string,
+	 *   1:array{stream:array{verify_peer:bool,verify_peer_name:bool}}|null
+	 * }
+	 */
+	private function parseHostAndContext(array $parts, array $query):array {
+		$scheme = strtolower($parts["scheme"] ?? "redis");
+		$host = $parts["host"];
+
+		if(!in_array($scheme, ["rediss", "tls"], true)) {
+			return [$host, null];
+		}
+
+		return [
+			"tls://$host",
+			[
+				"stream" => [
+					"verify_peer" => filter_var(
+						$query["verify_peer"] ?? true,
+						FILTER_VALIDATE_BOOL
+					),
+					"verify_peer_name" => filter_var(
+						$query["verify_peer_name"] ?? true,
+						FILTER_VALIDATE_BOOL
+					),
+				],
+			],
+		];
+	}
+
+	/**
+	 * @param array<string,mixed> $parts
+	 * @return array{string,string}|string|null
+	 */
+	private function parseAuth(array $parts):array|string|null {
+		if(isset($parts["user"]) && $parts["user"] !== "" && isset($parts["pass"])) {
+			return [rawurldecode($parts["user"]), rawurldecode($parts["pass"])];
+		}
+
+		if(isset($parts["pass"])) {
+			return rawurldecode($parts["pass"]);
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param array<string,mixed> $query
+	 */
+	private function parsePersistentId(array $query):?string {
+		if(
+			!isset($query["persistent"])
+			|| !filter_var($query["persistent"], FILTER_VALIDATE_BOOL)
+		) {
+			return null;
+		}
+
+		return is_string($query["persistent_id"] ?? null)
+			? $query["persistent_id"]
+			: "phpgt-session";
+	}
+
+	/**
+	 * @param array<string,mixed> $query
+	 */
+	private function parsePrefix(array $query, string $name):string {
+		return is_string($query["prefix"] ?? null)
+			? $query["prefix"]
+			: $name . self::DEFAULT_PREFIX_SEPARATOR;
+	}
+
+	/**
+	 * @param array<string,mixed> $parts
+	 */
+	private function parseDatabase(array $parts):int {
+		return isset($parts["path"])
+			? (int)trim($parts["path"], "/")
+			: 0;
+	}
+
+	private function getKey(string $sessionId):string {
+		return $this->prefix . $sessionId;
+	}
+
+	protected function createClient():Redis {
+		if(!class_exists(Redis::class)) {
+			throw new RuntimeException(
+				"The phpredis extension is required to use Gt\\Session\\RedisHandler."
+			);
+		}
+
+		return new Redis();
+	}
+
+	private function requireClient():Redis {
+		if(is_null($this->client)) {
+			throw new RuntimeException("RedisHandler::open() must be called before use.");
+		}
+
+		return $this->client;
+	}
+}
diff --git a/src/Session.php b/src/Session.php
index f33ff6d..7ae2a8b 100644
--- a/src/Session.php
+++ b/src/Session.php
@@ -51,7 +51,7 @@ public function __construct(
 
 		$this->id = $id;
 
-		$sessionPath = $this->getAbsolutePath(
+		$sessionPath = $this->normaliseSavePath(
 			$config["save_path"] ?? self::DEFAULT_SESSION_PATH
 		);
 		$sessionName = $config["name"] ?? self::DEFAULT_SESSION_NAME;
@@ -81,7 +81,7 @@ public function kill():void {
 	public function getStore(
 		string $namespace,
 		bool $createIfNotExists = false
-	):?SessionStore {
+	):?SessionStoreInterface {
 		return $this->store->getStore(
 			$namespace,
 			$createIfNotExists
@@ -113,7 +113,11 @@ public function getId():string {
 		return session_id() ?: "";
 	}
 
-	protected function getAbsolutePath(string $path):string {
+	protected function normaliseSavePath(string $path):string {
+		if($this->isDsn($path)) {
+			return $path;
+		}
+
 		$path = str_replace(
 			["/", "\\"],
 			DIRECTORY_SEPARATOR,
@@ -130,6 +134,10 @@ protected function getAbsolutePath(string $path):string {
 		return $path;
 	}
 
+	protected function isDsn(string $path):bool {
+		return (bool)preg_match('/^[a-z][a-z0-9+.-]*:\/\//i', $path);
+	}
+
 	/** @SuppressWarnings("PHPMD.Superglobals") */
 	protected function createNewId():string {
 		if(($this->config["use_trans_sid"] ?? null)
@@ -166,12 +174,15 @@ public function write():bool {
 	 * @param string $sessionPath
 	 * @param string $sessionName
 	 * @param array<string,mixed> $config
+	 * @SuppressWarnings("PHPMD.UnusedFormalParameter")
 	 * @return void
 	 */
+	// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundInImplementedInterfaceAfterLastUsed
 	private function attemptStart(
 		string $sessionPath,
 		string $sessionName,
 		array $config,
+		?string $unusedContext = null,
 	):void {
 		$sessionOptions = $this->getSessionOptions(
 			$sessionPath,
diff --git a/src/SessionStore.php b/src/SessionStore.php
index d8e4c4e..99ee155 100644
--- a/src/SessionStore.php
+++ b/src/SessionStore.php
@@ -10,9 +10,7 @@
  * @extends ArrayIterator<string, mixed>
  * @SuppressWarnings("PHPMD.TooManyPublicMethods")
  */
-class SessionStore
-	extends ArrayIterator
-	implements SessionContainer, TypeSafeGetter, Countable {
+class SessionStore extends ArrayIterator implements SessionStoreInterface {
 	use NullableTypeSafeGetter;
 
 	protected string $name;
diff --git a/src/SessionStoreFactory.php b/src/SessionStoreFactory.php
index aaf6da0..f4cc032 100644
--- a/src/SessionStoreFactory.php
+++ b/src/SessionStoreFactory.php
@@ -5,7 +5,7 @@ class SessionStoreFactory {
 	public function create(
 		string $namespace,
 		Session $session,
-	):SessionStore {
+	):SessionStoreInterface {
 		$namespaceParts = explode(".", $namespace);
 		$store = new SessionStore(
 			array_shift($namespaceParts),
diff --git a/src/SessionStoreInterface.php b/src/SessionStoreInterface.php
new file mode 100644
index 0000000..c58251c
--- /dev/null
+++ b/src/SessionStoreInterface.php
@@ -0,0 +1,22 @@
+<?php
+namespace Gt\Session;
+
+use Countable;
+use Gt\TypeSafeGetter\TypeSafeGetter;
+
+interface SessionStoreInterface extends SessionContainer, TypeSafeGetter, Countable {
+	public function setData(string $key, mixed $value):void;
+	public function getData(string $key):mixed;
+	public function containsData(string $key):bool;
+	public function containsStore(string $key):bool;
+	public function removeData(string $key):void;
+	public function removeStore(string $key):void;
+	public function removeDataOrStore(string $key):void;
+	public function write():void;
+	public function getStore(
+		string $namespace,
+		bool $createIfNotExists = false
+	):?SessionStoreInterface;
+	public function setStore(string $namespace):void;
+	public function createStore(string $namespace):SessionStoreInterface;
+}
diff --git a/test/FlashTest.php b/test/FlashTest.php
index 8056d6d..bdc8956 100644
--- a/test/FlashTest.php
+++ b/test/FlashTest.php
@@ -2,12 +2,12 @@
 
 use Gt\Session\Flash;
 use Gt\Session\FlashMessage;
-use Gt\Session\SessionStore;
+use Gt\Session\SessionStoreInterface;
 use PHPUnit\Framework\TestCase;
 
 class FlashTest extends TestCase {
 	public function testPut():void {
-		$sessionStore = self::createMock(SessionStore::class);
+		$sessionStore = self::createMock(SessionStoreInterface::class);
 		$sessionStore->expects(self::once())
 			->method("get")
 			->with("queue.test")
@@ -28,7 +28,7 @@ public function testConsume_none():void {
 		$queue->expects(self::once())
 			->method("dequeue")
 			->willThrowException(new RuntimeException("Can't shift from an empty datastructure"));
-		$sessionStore = self::createMock(SessionStore::class);
+		$sessionStore = self::createMock(SessionStoreInterface::class);
 		$sessionStore->expects(self::once())
 			->method("get")
 			->with("queue.test")
@@ -47,7 +47,7 @@ public function testConsume():void {
 			->method("dequeue")
 			->willReturnOnConsecutiveCalls($fm1, $fm2);
 
-		$sessionStore = self::createMock(SessionStore::class);
+		$sessionStore = self::createMock(SessionStoreInterface::class);
 		$sessionStore->expects(self::exactly(3))
 			->method("get")
 			->with("queue.test")
diff --git a/test/phpunit/RedisHandlerTest.php b/test/phpunit/RedisHandlerTest.php
new file mode 100644
index 0000000..b6d3dbd
--- /dev/null
+++ b/test/phpunit/RedisHandlerTest.php
@@ -0,0 +1,182 @@
+<?php
+namespace Gt\Session\Test;
+
+use Gt\Session\RedisHandler;
+use PHPUnit\Framework\TestCase;
+use Redis;
+
+class RedisHandlerTest extends TestCase {
+	public function testOpenParsesStandardDsn():void {
+		$client = new TestRedisClient();
+		$sut = new class($client) extends RedisHandler {
+			public function __construct(private readonly TestRedisClient $client) {}
+
+			protected function createClient():Redis {
+				/** @phpstan-ignore-next-line */
+				return $this->client;
+			}
+		};
+
+		$sut->open(
+			"redis://default:secret@example.internal:25061/2?prefix=prod:session:&ttl=1800&timeout=1.5&read_timeout=2.5&persistent=1&persistent_id=pool-a",
+			"GT",
+		);
+
+		self::assertSame("example.internal", $client->connectParameters["host"]);
+		self::assertSame(25061, $client->connectParameters["port"]);
+		self::assertSame(1.5, $client->connectParameters["timeout"]);
+		self::assertSame(2.5, $client->connectParameters["readTimeout"]);
+		self::assertSame("pool-a", $client->connectParameters["persistentId"]);
+		self::assertSame([["default", "secret"]], $client->authCalls);
+		self::assertSame([2], $client->selectCalls);
+
+		$sut->write("abc123", "payload");
+		self::assertSame("payload", $sut->read("abc123"));
+		self::assertSame(
+			[
+				"key" => "prod:session:abc123",
+				"ttl" => 1800,
+				"value" => "payload",
+			],
+			$client->setExCalls[0],
+		);
+	}
+
+	public function testOpenParsesTlsDsn():void {
+		$client = new TestRedisClient();
+		$sut = new class($client) extends RedisHandler {
+			public function __construct(private readonly TestRedisClient $client) {}
+
+			protected function createClient():Redis {
+				/** @phpstan-ignore-next-line */
+				return $this->client;
+			}
+		};
+
+		$sut->open(
+			"rediss://:secret@example.internal?verify_peer=0&verify_peer_name=0",
+			"GT",
+		);
+		$sut->write("abc123", "payload");
+
+		self::assertSame("tls://example.internal", $client->connectParameters["host"]);
+		self::assertSame(
+			[
+				"stream" => [
+					"verify_peer" => false,
+					"verify_peer_name" => false,
+				],
+			],
+			$client->connectParameters["context"],
+		);
+		self::assertSame(["secret"], $client->authCalls);
+		self::assertSame("payload", $client->data["GT:abc123"]);
+	}
+
+	public function testDestroyAndClose():void {
+		$client = new TestRedisClient();
+		$sut = new class($client) extends RedisHandler {
+			public function __construct(private readonly TestRedisClient $client) {}
+
+			protected function createClient():Redis {
+				/** @phpstan-ignore-next-line */
+				return $this->client;
+			}
+		};
+		$sut->open("redis://cache.internal", "GT");
+		$sut->write("abc123", "payload");
+
+		self::assertTrue($sut->destroy("abc123"));
+		self::assertSame("", $sut->read("abc123"));
+		self::assertTrue($sut->close());
+		self::assertTrue($client->closed);
+	}
+}
+
+class TestRedisClient {
+	/** @var array<string,mixed> */
+	public array $connectParameters = [];
+	/** @var array<int,array{key:string,ttl:int,value:string}> */
+	public array $setExCalls = [];
+	/** @var array<int,string> */
+	public array $setCalls = [];
+	/** @var array<int,array{string,string}|string> */
+	public array $authCalls = [];
+	/** @var array<int,int> */
+	public array $selectCalls = [];
+	/** @var array<string,string> */
+	public array $data = [];
+	public int $deleted = 0;
+	public bool $closed = false;
+
+	/**
+	 * @param array{auth?:array{0:string|false|null,1?:string},stream?:array<string,mixed>}|null $context
+	 */
+	public function connect(
+		string $host,
+		int $port,
+		float $timeout = 0,
+		?string $persistentId = null,
+		int $retryInterval = 0,
+		float $readTimeout = 0,
+		?array $context = null,
+	):bool {
+		$this->connectParameters = [
+			"host" => $host,
+			"port" => $port,
+			"timeout" => $timeout,
+			"persistentId" => $persistentId,
+			"retryInterval" => $retryInterval,
+			"readTimeout" => $readTimeout,
+			"context" => $context,
+		];
+		return true;
+	}
+
+	/**
+	 * @param array{string,string}|string $credentials
+	 */
+	public function auth(array|string $credentials):bool {
+		$this->authCalls []= $credentials;
+		return true;
+	}
+
+	public function select(int $database):bool {
+		$this->selectCalls []= $database;
+		return true;
+	}
+
+	public function get(string $key):string|false {
+		return $this->data[$key] ?? false;
+	}
+
+	public function set(string $key, string $value):bool {
+		$this->setCalls []= $key;
+		$this->data[$key] = $value;
+		return true;
+	}
+
+	public function setEx(string $key, int $ttl, string $value):bool {
+		$this->setExCalls []= [
+			"key" => $key,
+			"ttl" => $ttl,
+			"value" => $value,
+		];
+		$this->data[$key] = $value;
+		return true;
+	}
+
+	public function del(string $key):int {
+		unset($this->data[$key]);
+		return ++$this->deleted;
+	}
+
+	public function close():bool {
+		$this->closed = true;
+		return true;
+	}
+}
+
+if(!class_exists(Redis::class)) {
+	class_alias(TestRedisClient::class, Redis::class);
+}
diff --git a/test/phpunit/SessionStoreTest.php b/test/phpunit/SessionStoreTest.php
index 2124cb3..8202d0f 100644
--- a/test/phpunit/SessionStoreTest.php
+++ b/test/phpunit/SessionStoreTest.php
@@ -5,6 +5,7 @@
 use Gt\Session\Handler;
 use Gt\Session\Session;
 use Gt\Session\SessionStore;
+use Gt\Session\SessionStoreInterface;
 use Gt\Session\Test\Helper\FunctionMocker;
 use Gt\Session\Test\Helper\DataProvider\KeyValuePairProvider;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -172,4 +173,10 @@ public function testSessionStoreIsIterable():void {
 			self::assertSame($rawData[$key], $value);
 		}
 	}
+
+	public function testSessionStoreImplementsInterface():void {
+		$session = $this->createMock(Session::class);
+		$sut = new SessionStore("test", $session);
+		self::assertInstanceOf(SessionStoreInterface::class, $sut);
+	}
 }
diff --git a/test/phpunit/SessionTest.php b/test/phpunit/SessionTest.php
index 9d061e5..38d1c52 100644
--- a/test/phpunit/SessionTest.php
+++ b/test/phpunit/SessionTest.php
@@ -37,6 +37,18 @@ public function testSessionStarts():void {
 		);
 	}
 
+	public function testSessionStartPreservesDsnSavePath():void {
+		$handler = self::createMock(Handler::class);
+		$savePath = "valkey://cache.internal:6379/0?ttl=1440";
+
+		new Session($handler, [
+			"save_path" => $savePath,
+		]);
+
+		$sessionStartParameter = FunctionMocker::$mockCalls["session_start"][0][0];
+		self::assertSame($savePath, $sessionStartParameter["save_path"]);
+	}
+
 	public function testWriteSessionDataCalled() {
 		$handler = self::createMock(Handler::class);
 		$handler->expects($this->exactly(2))