Release 3.10.0

Changed

• Officially support Python 3.14 and PyPy 3.11 and drop support for Python 3.9
  and PyPy 3.9.

Fixed

• Fix an HTML comment parsing case in some Python versions that can cause an
  infinite loop (#1554).
• Revert the default behavior of USE_DEFINITION_ORDER (to True). The new
  behavior introduced in 3.9.0 is experimental and results are inconsistent.
  It should not have been made the default behavior (#1561).