Hi folks, This is just to let you know that Lua 5.1 support will be removed from Prosody trunk nightly builds soon. If you are happily using Prosody 0.12 or earlier versions, this announcement does not affect you.
## What is changing? As planned for some time, Prosody 0.13 (not yet released) will not support Lua 5.1. We are currently aiming for Prosody 0.13 to support Lua 5.2, 5.3 and 5.4. Prosody 0.12.x and earlier versions are *not* changing. These will continue to support Lua 5.1, even in future bugfix/security releases. Prosody 0.12.x will continue to emit a warning when using Lua 5.1. ## Does this affect me? The upcoming change will only affect users of nightly builds from Prosody's development (trunk) branch (e.g. the prosody-trunk Debian package) who are running Prosody with Lua 5.1. Both these things can be verified by examining the output of the command 'prosodyctl about'. ## What can I do if I am affected by this change? If you are currently using Prosody trunk with Lua 5.1 require Lua 5.1 support, we recommend switching to a newer version of Lua, or switching to Prosody 0.12 (which also has nightly builds, such as the prosody-0.12 Debian package). ## When will this change occur? Removal of Lua 5.1 support actually involves a number of steps, including code and build infrastructure updates. For this reason, there is no fixed date yet for when the first 5.1-incompatible build will arrive. ## What about LuaJIT? LuaJIT provides compatibility with Lua 5.1 only. It is expected that Prosody 0.13 will not be compatible with LuaJIT. Even though it may have worked for some deployments up to now, we don't recommend or support running Prosody under LuaJIT in any case. ## Why are you removing support for Lua 5.1? Support for so many Lua versions comes at a cost. We often have to implement less efficient or less concise solutions to maintain cross-version compatibility. In particular, the changes from Lua 5.1 to Lua 5.2 were quite substantial (similar to the Python 2 -> Python 3 transition that many Python applications have dealt with). Removal of Lua 5.1 support will allow us to trim some code, and use more efficient APIs that are available in newer versions of Lua. These are in line with our goals of keeping Prosody small and lightweight. Some specific details are tracked at https://issues.prosody.im/1600 We're happy to answer questions about this change, here or in our community chat, as usual. Regards, Matthew -- You received this message because you are subscribed to the Google Groups "prosody-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to prosody-dev+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/prosody-dev/CAJt9-x4OuriOBour6aMb1ij1ATEpoa_UdbJ%2BdE7gMVACL8a3Aw%40mail.gmail.com.
