blog: release-0.19

Author: Chemaclass

content/blog/2025-08-03-release-0.19.md

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+title = "Release: v0.19.1"
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+
+## PHP 8.3 and Me
+
+### ✨ TL;DR
+
+This feature release introduces new functional capabilities (memoize, unset-in, base64-*), performance enhancements for namespace sorting, internal refactors for improved maintainability, and improved REPL behavior. It also updates the minimum supported PHP version to 8.3, ensuring forward compatibility.
+
+## Highlights
+
+### 🥇 New Features
+
+- Added unset-in function to remove nested keys from data structures
+- Added base64 support with base64/encode and base64/decode functions
+- Added memoize function for caching results of pure functions
+- Added symbol support for symbol type creation and manipulation
+
+### 🐛 Bug fixes
+
+- Fixed REPL to correctly print Unicode characters
+- Fixed multi-line string literal parsing in REPL when brackets are present
+- Fixed REPL require behavior to avoid breaking evaluation
+- Fixed warning triggers in RequireEvaluatorTest
+- Suppressed notice when falling back to the system temp dir
+- Ensured temporary directories are created without restrictive umask
+
+### ⚙️ Miscellaneous
+
+- Updated minimum supported PHP version to 8.3
+
+## Full list
+
+For a full list of changes, have a look at  
+- [v0.19.0](https://github.com/phel-lang/phel-lang/releases/tag/v0.19.0)
+- [v0.19.1](https://github.com/phel-lang/phel-lang/releases/tag/v0.19.1)