Merge pull request #206 from mruby-Forum/release-mruby-3.2.0

mruby 3.2.0 released.

Author: matz

_posts/2023-02-24-mruby-3.2.0-released.markdown

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+---
+layout: post
+title:  "mruby 3.2.0 released"
+date:   2023-02-24 00:00:00
+categories: releases
+---
+
+# mruby 3.2.0
+
+We are announcing the first stable release of mruby 3.2 series - [mruby 3.2.0](https://github.com/mruby/mruby/releases/tag/3.2.0).
+
+Describes the new features and changes in mruby 3.2.  
+The main changes in mruby 3.2 are also described in [doc/mruby3.2.md](https://github.com/mruby/mruby/blob/master/doc/mruby3.2.md).
+
+---
+
+# The language
+
+- Now `a::B = c` should evaluate `a` then `c`.
+- Anonymous arguments `*`, `**`, `&` can be passed for forwarding.
+- Multi-precision integer is available now via `mruby-bigint` gem.
+
+# mruby VM and bytecode
+
+- `OP_ARYDUP` was renamed to `OP_ARYSPLAT`. The instruction name
+  was changed but instruction number and basic behavior have not
+  changed (except that `ARYDUP nil` makes `[]`).
+
+# Tools
+
+## `mruby`
+
+- `-b` only specifies the script is the binary. The files loaded by `-r` are not affected by the option.
+- `mruby` now loads complied binary if the suffix is `.mrb`.
+
+## `mrbc`
+
+- Add `--no-optimize` option to disable optimization.
+
+# mrbgems
+
+## mruby-class-ext
+
+- Add `Class#subclasses` method.
+- Add `Module#undefined_instance_methods` method.
+
+## New bundled gems
+
+- mruby-errno from [https://github.com/iij/mruby-errno.git]
+- mruby-set from [https://github.com/yui-knk/mruby-set.git]
+- mruby-dir from [https://github.com/iij/mruby-dir.git]
+- mruby-data
+
+# Breaking Changes
+
+## `mrb_vm_run()` may detach top-level local variables referenced from blocks
+
+When the `mrb_vm_run()` function (including `mrb_top_run()`) is called,
+the previous top-level local variables referenced from blocks is detached under either of the following conditions.
+
+- If the `stack_keep` parameter is given as 0.
+- If the number of variables in `irep` to be executed is less than the number of previous top-level local variables.
+
+This change also affects API functions such as `mrb_load_string()` and `mrb_load_file()`.
+The conditions under which the previous top-level local variables referenced from blocks is detached in these functions are as follows:
+
+- If the function has no `mrbc_context` pointer parameter, or the `mrbc_context` pointer parameter is set to `NULL`.
+- If the number of variables held in the `mrbc_context` pointer is less than the number of previous top-level local variables.
+
+Intentional reliance on previous behavior may cause compatibility problems in your application.
+
+# CVEs
+
+Following CVEs are fixed.
+
+- [CVE-2022-0080](https://nvd.nist.gov/vuln/detail/CVE-2022-0080)
+- [CVE-2022-0240](https://nvd.nist.gov/vuln/detail/CVE-2022-0240)
+- [CVE-2022-0326](https://nvd.nist.gov/vuln/detail/CVE-2022-0326)
+- [CVE-2022-0631](https://nvd.nist.gov/vuln/detail/CVE-2022-0631)
+- [CVE-2022-0481](https://nvd.nist.gov/vuln/detail/CVE-2022-0481)
+- [CVE-2022-0525](https://nvd.nist.gov/vuln/detail/CVE-2022-0525)
+- [CVE-2022-0570](https://nvd.nist.gov/vuln/detail/CVE-2022-0570)
+- [CVE-2022-0614](https://nvd.nist.gov/vuln/detail/CVE-2022-0614)
+- [CVE-2022-0623](https://nvd.nist.gov/vuln/detail/CVE-2022-0623)
+- [CVE-2022-0630](https://nvd.nist.gov/vuln/detail/CVE-2022-0630)
+- [CVE-2022-0631](https://nvd.nist.gov/vuln/detail/CVE-2022-0631)
+- [CVE-2022-0632](https://nvd.nist.gov/vuln/detail/CVE-2022-0632)
+- [CVE-2022-0717](https://nvd.nist.gov/vuln/detail/CVE-2022-0717)
+- [CVE-2022-0890](https://nvd.nist.gov/vuln/detail/CVE-2022-0890)
+- [CVE-2022-1106](https://nvd.nist.gov/vuln/detail/CVE-2022-1106)
+- [CVE-2022-1212](https://nvd.nist.gov/vuln/detail/CVE-2022-1212)
+- [CVE-2022-1276](https://nvd.nist.gov/vuln/detail/CVE-2022-1276)
+- [CVE-2022-1286](https://nvd.nist.gov/vuln/detail/CVE-2022-1286)
+- [CVE-2022-1934](https://nvd.nist.gov/vuln/detail/CVE-2022-1934)
+
+---
+
+We have done 1,243 commits to 270 files with 19,130 additions and 10,192 deletions since mruby 3.1.0. For more detail of the updates, [see Commit Log](https://github.com/mruby/mruby/compare/3.1.0...3.2.0).
+
+Thanks to all the contributors who have worked on bug fixes and improvements in the release of `mruby 3.2.0`.