RTIR 4.0.3 is now available as a maintenance release, primarily providing security fixes. Our documentation site has notes on upgrading and detailed release notes. When upgrading RTIR to 4.0.3, you should also upgrade RT to version 4.4.6 to get additional security updates there.
RT 5.0 and RTIR 5.0 are also available and we encourage all RTIR users to consider upgrading to the newest releases.
https://download.bestpractical.com/pub/rt/release/RT-IR-4.0.3.tar.gz
https://download.bestpractical.com/pub/rt/release/RT-IR-4.0.3.tar.gz.asc
SHA-256 sums
2c6a57ff0da877f40b81d7d24c27609d350251ecfa97534e6657349a14bf10aa RT-IR-4.0.3.tar.gz
a9ed2484fe64ab3e12380e055659b7bdb9c743619e5d2d77883b5709c8ccd944 RT-IR-4.0.3.tar.gz.asc
Enjoy!