oTree 5 (aka oTree Lite) has now been released as oTree 5.0 stable. This means that when you do "pip install otree", or deploy to a new Heroku site, it will install oTree Lite. Since oTree 5 is a significant change (most notably it does not use Django), some people will want to stay on oTree 3.x. Please refer to the below announcement about this topic.
On Monday, January 18, 2021 at 4:32:41 PM UTC+8 Chris @ oTree wrote:
Hello all,
Thank you to the people who installed and gave me feedback on
oTree Lite beta version. I plan to release it as an official stable version eventually.
There will then be 2 supported releases of oTree:
- the 3.x series (which most of you are using now)
- oTree Lite, which will be version 5.x.
Many people will be staying on version 3.x long term, because they are using features from Django, or certain older oTree features (see the link above for details). So, I will be continuing to support 3.x. If you would like to guarantee that you stay on version 3.x, use this command next time you upgrade:
pip3 install -U "otree<5"
Thank you!
Chris