Releases

0.54 - Road to One

Inline int math up to 8.8x faster + protocols on PHP interfaces + 16 new core fns + sharper errors and lint JSON

0.53 - Floor Raised

PHP 8.5 minimum + 2-4x faster assoc/get-in/update-in + short type tags (^map, ^vector) + phel bench --ab

0.52 - Honest Output

Error codes + phel explain + uniform stack traces, legacy php/new/php/->/php/:: dropped, pruned OPcache.

0.51 - Only Once

Mutation testing + smarter test runner, 18-24% faster compiles, big runtime/stdlib speedups, 20% faster boot.

0.50 - The Last Zero

Clojure-style PHP interop + core/compiler speedups up to 60x + LSP local jumps + new phel bench and phel balance

0.49 - Arity Lane

20 new core fns (clojure.set relational helpers, atom API, pr/prn family) + trace namespace + 1.5-2x faster multi-arity calls + NaN fixes in sorted collections

0.48 - Step Into

New core fns (trampoline, reductions, subvec, with-open, dbg) + step debugger + HTML coverage + read-only fixes & compiler speedups

0.47 - Clear Signals

LSP/nREPL editor smarts + clearer test diffs & error locations + parallel-test race fix + ~30% faster startup via OPcache re-exec.

0.46 - Native Path

Faster CLI startup + REPL boot (~34%), native PHP interop & core-call compilation, config validation in doctor, plus hash/equality and inliner fixes.

0.45 - Warm Boot

Phel 0.45: precompiled PHAR core (cold-start ~1.2s→0.2s), native-int arithmetic fast path (~1.8-8x), shell completion + CLI short aliases, plus REPL autocompletion and many round-trip/recur/proto...

0.44 - Feedback Loop

Config tooling (phel config, optimization levels, composable setters) + sharper test runner (--watch, coverage, clearer failures) + LSP PHP interop + REPL reload.

0.43 - First-Class Callable

Up to ~3.7× faster compiler hot paths, first-class PHP callables, readonly structs + enum methods, typed interface constants

0.42 - Life & Everything

Richer typed PHP interop (attributes, enums, named args, by-ref) + lazy iterator-seq + hygienic let-macros + gacela 1.15 fix.

0.41 - Fold and Inline

Opt-in compiler optimizations (inlining, tail-call rewrite, constant folding, call-site specialization) + Clojure-parity & lazy-seq fixes

0.40 - Sharper Edges

EDN/Transit IO + defonce + ^:by-ref params + big compiler perf wins (call-site cache, type-driven specialisation, const folding)

0.39 - Parity Pass

Auto-refer Phel\Lang\* types + Clojure-aligned renames (Atom/UUID/BigInt/Ratio/Future/Cons) + lazy seq + build/test fixes.

0.38 - Fanout

0.37 - Type Inference

Type tags + tag inference + 3.66x recursion speedup + agent-install workflow + .phel/ consolidation.

0.36 - Precision

First-class Vars + Ratios/BigInteger/BigDecimal numeric tower + Uuid/PhpClass/MapEntry/Queue types + faster test/REPL scans.

0.35 - Lispward

PHP 8.4 + dot-namespace canonical form + namespace introspection APIs + many nil/seq fixes + AI tooling helpers.

0.34 - Toolsmith

Reader literals (#inst/#regex/#php) + nREPL/LSP/lint/watch tooling + new modules (match, schema, async, ai) + generative test shrinking.

0.33 - Quicksilver

New router + http-client + AI modules, UUID/ratio literals, constructor shorthand, many new predicates/seq fns, transient fast-paths, phel\str→phel\string.

0.32 - Async Awakens

Async/concurrency module (AMPHP) + Clojure-compat aliases & reader syntax + defrecord/reify/sorted collections + transients & character literals.

0.31 - Clojure Convergence

Protocols + transducers + reader conditionals/.cljc + regex literals + rich REPL introspection tools

0.30 - Many Forms

Multimethods + walk/pprint modules + keyword interning + 15+ perf optimizations across core, data structures & REPL

0.29 - Helpful Errors

Error codes + "Did you mean?" suggestions + cleaner type hints + better macro/parser error context

0.28 - Zero Config

phel init command + zero-config project detection + runtime args via *program* + Clojure-compatible remove

0.27 - Turbo Mode

~99% faster warm runs with persistent namespace cache, plus better multi-arity function docs and memoize-lru.

0.26 - Seqable Strings

String iteration + lazy file IO + more lazy seq functions + mocking framework + compiler optimizations

0.25 - Lazy sequences

Lazy sequences + memory efficiency + infinite sequence support + simpler releases + bug fixes

0.24 - Load and in-ns

New special forms (load, in-ns), better null handling, a minor bug fix, and stronger type safety.

0.23 - Eval Everything

Improved docs, debugging, and developer experience. New phel eval command, repl defaults, JSON docs, better :require/:use handling, and modernized internals.

0.22 - Metadata conditions

Strength metadata handling, expands the function API, introduces new array utilities and debugging tools, and improves printing consistency. It also raises code quality by moving to PHPStan level 5...

0.21 - Multi-Arity Functions

It introduces multi-arity functions, richer macro support, new commenting styles, and flexible destructuring and metadata features. The REPL is brighter and clearer, while .phar handling and symbol...

0.20 - Expanding the Core

This release expands Phel’s core with many new functions and macros, unifies and improves collection handling (reduce, take, map, sets), and streamlines runtime access through the new Phel facade...

0.19 - PHP 8.3 and Me

This feature release introduces new functional capabilities (memoize, unset-in, base64-*), performance enhancements for namespace sorting, internal refactors for improved maintainability, and impro...

0.18 - Going PHARther

You can now use Phel as a single executable PHAR!

0.17 - Macroverse

TL;DR: This release supercharges the REPL with completions and precise error traces, introduces powerful new macros (doto, time, if-let, when-let), adds macroexpand support, enables native yield, i...

0.16 - REPL improvements & cache override

0.15 - Compiler improved

0.14 - phel\str library

0.13 - Require PHP>=8.2

0.12 - Better error handling

0.11 - Improved build

0.10 - Fluent config

0.9 - ApiFacade

See the blog post or Changelog for more information.

0.8 - JSON support

See the blog post or Changelog for more information.

0.7 - Improved core library

This release comes with a lot a small improvements to the core library. See the blog post or Changelog for more information.

0.6 - PHP 8.1 support

This release drops the support for PHP 7.4. Phel supports now PHP 8.0 and PHP 8.1.

0.5 - Compile command

This release adds a compile command to Phel. Additionally, we added three new languages features:

0.4 - Internal changes

0.3 - Persistent Data Structures

This release adds persistent (immutable) data structures to Phel.

0.2 - Better PHP Interop

0.1 - First release

This is the first released Phel version!