Vips.concurrency_set / cache_set_max / cache_set_max_mem / cache_set_max_files* missing (NoMethodError) even though documented

[parthbhatt20]

When starting a Rails 8.2.0.alpha app that uses libvips via ruby‑vips, calls to cache configuration methods like Vips.concurrency_set, Vips.cache_set_max , Vips.cache_set_max_mem, Vips.cache_set_max_files raise NoMethodError, even though they are present in the documentation

When starting a Rails 8.2.0.alpha app that uses libvips via ruby‑vips, calls to the cache/concurrency configuration methods

• Vips.concurrency_set
• Vips.cache_set_max
• Vips.cache_set_max_mem
• Vips.cache_set_max_files

raise NoMethodError, even though these methods appear in the ruby‑vips documentation.

Environment

• OS: Linux Mint (x86_64)
• Ruby: ruby 3.4.7 (2025-10-08 revision 7a5688e2a2) +PRISM [x86_64-linux]
• Rails: Rails 8.2.0.alpha (bundle exec rails -v)

I did changed vips.rb file to below and things are working fine . i am curious is it fine or do we need to apply this fix ?