2.11BSD 35th Anniversary Edition PL500 (November 2026) 500: the patchkit that will convert a Patch #499 system to PL500. PL500readme.txt: This file PL500.tap.bz2: A bzip2'd bootable installation tape in SimH TAP format. All 9 files of a 2.11 distribution are present on 1 tape. Attach the PL500.tap to a tape device in a SimH.ini file, boot the tape device. Then follow the 2.11 install process given in the installation document. PL500setup.pdf: the 2.11BSD installation document in PDF format.