Version 6.0.0

New feature

• Support SQLite databases.

Breaking

• Address more deprecation warnings, modernize code base; the minimum
  required MediaWiki version is now 1.42!

Version 5.2.0

New feature

• It is now possible to send optional additional parameters to the citation
  template, e.g. {{#pmid:12345|my_optional_argument=my_argument_value}}. This
  can be useful for additional information such as an article URL.

Fixed

• Address deprecation warnings with PHP 8.x.

Version 5.1.0

New feature

• It is now possible to configure a Pubmed API key when setting up the extension.
• Keywords parameter is now available for the Pubmed template (values are sources from Keyword elements), separated by comma.

Changed

• Use only first occurrence of specific tag to prevent values like journal from being overwritten by multiple occurrences of Title tag like for this article https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=32681566&retmode=xml where Title also present in References section.
• Strip tags and newlines/whitespaces from Abstract field (AbstractText).
• Updated extension.json manifest version to 2.

Version 5.0.2

Changed

• Extraction of the journal title is now more resilient; if no ISOAbbreviation
  field is present, MedlineTA may be used instead.

In addition, the master branch was renamed to main and the information about installation, configuration and usage is now consolidated in the README.md file so that it can be version-controlled along with the code.

Version 5.0.1

Fixed

• Fix version number.

Version 5.0.0

Fixed

• Fix "Invalid server index index" error that occurred with MediaWiki version 1.34
  (issue #5). NOTE that this change now requires at least version 1.28 of MediaWiki
  (an obsolete version).

Version 4.0.5

Delay loading of Wiki messages in order to ensure compatibility with VisualEditor.

Version 4.0.4

Improve handling of invalid XML data; do not cache XML unless it actually contains an article. See #3.

Version 4.0.3

- Articles with single authors would not be formatted correctly.

Version 4.0.2

- Fix: Prevent log flooding with warnings in certain situations.