This web page has the Version History of the BOINC Client. I published the url for this page last year, and shortly thereafter, they moved the page. Dummy me, I thought the web site was down!
Here is the updated link:
http://boinc-wiki.ath.cx/index.php?title=Version_History_of_The_BOINC_Client_Software
Cheers
Currently running 5.2.13 on everything except my laptop which is running 5.4.7 no problems (so far…)
note this bit is important with the new seti_enhanced credits:
5.2.6 31.10.2005 S Updated localisation-files, bug-fix to boinc_fpops_per_cpu_sec and boinc_fpops_cumulative so projects can claim credits more accurately.