* Add CPython 3.15.0a4 by @nedbat in https://github.com/pyenv/pyenv/pull/3390
## Release v2.6.18
* Fix an infinite loop if a shim is symlinked to and called from a different location with "system" version active by @native-api in https://github.com/pyenv/pyenv/pull/3375
* CI: Update and cleanup workflow scripts by @native-api in https://github.com/pyenv/pyenv/pull/3372