bitbucket security technology

[HjoshM]

On 30 June, I installed the latest SourceTree and Mercurial, created a new BitBucket repository, and started working on a software project. I commited and pushed successfully without any problems.

The next day 01 July, I continued working, but when I tried to push, I got the following error message:

hg push --new-branch default

warning: connecting to bitbucket.org using legacy security technology (TLS 1.0)

abort: error: [SSL: SSLV3_ALERT_HANDSHAKE_FAILURE] sslv3 alert handshake failure (_ssl.c:590)

Using an exact search, I do not find any posts on this very error message, but there are similar posts that indicate some outdated versions being the problem, etc...

What am I missing or doing wrong that I cannot push to BitBucket?