- Update to 2.4.1:
* Bug fixes:
- Autotools: Fix installed header expat_config.h for multilib
systems; regression introduced in 2.4.0 by pull request #486
* Other changes:
- Version info bumped from 9:0:8 to 9:1:8; see
https://verbump.de/ for what these numbers do

- Update to 2.4.0: [CVE-2013-0340 "Billion Laughs"]
* Security fixes:
- CVE-2013-0340/CWE-776 -- Protect against billion laughs attacks
(denial-of-service; flavors targeting CPU time or RAM or both,
leveraging general entities or parameter entities or both)
by tracking and limiting the input amplification factor
( := ( + ) / ).
By conservative default, amplification up to a factor of 100.0
is tolerated and rejection only starts after 8 MiB of output bytes
(= + ) have been processed.
The fix adds the following to the API:
- A new error code XML_ERROR_AMPLIFICATION_LIMIT_BREACH to
signals this specific condition.
- Two new API functions ..
- XML_SetBillionLaughsAttackProtectionMaximumAmplification and
- XML_SetBillionLaughsAttackProtectionActivationThreshold
.. to further tighten billion laughs protection parameters
when desired. Please see file "doc/reference.html" for details.
If you ever need to increase the defaults for non-attack XML
payload, please file a bug report with libexpat.
- Two new XML_FEATURE_* constants ..
- that can be queried using the XML_GetFeatureList function, and