web.py 0.50 has been released today.
You can install the latest version of web.py using pip:
pip install web.py==0.50
Detailed changes are documented here:https://github.com/webpy/webpy/blob/master/ChangeLog.txt
Please try it out with your web.py applications and report issues if you find any.
This is the last release which supports both Python 2.7 and Python 3.
Next major release will be 1.0 and only Python-3 is supported.
Zhang Huangbin, founder of iRedMail project: https://www.iredmail.org/