# 21.05.1

Maintenance/bug fix release of pfSense Plus software 21.05.x

* Regression #11995: UPnP/NAT-PMP not functioning on 32-bit ARM
* Todo #12004: Disable PCRE JIT to work around PHP PCRE crashes on multi-core 32-bit ARM systems
* Bug #12200: 32-bit ARM performance regression
* Todo #12201: Native hardware package builds for 32-bit ARM