Dillo release 3.1.0-rc1

Summary of changes

Note: The 3.1.0-rc1 is a release candidate version intended for early testers. The stable release 3.1.0 will be released in a few weeks if there are no more issues.

Since the last release 3.0.5 from 2015 a lot of things have happened to the Dillo project. Here is a short timeline to put things into perspective:

• On 2016, the main developer of the layout engine, Sebastian Geerken, passed away.
• On 2017, the development stopped.
• On 2019, the last email from Jorge Arellano Cid, the lead developer of Dillo, was recorded by the mailing list.
• On 2022, the domain dillo.org was lost.
• On 2024, an attempt to resurrect the project began by Rodrigo Arias Mallo.

This release contains a lot of changes accumulated from the 2015-2017 period, as well as fixes and small features introduced in 2024. Here is a summary:

• Add support for floating HTML elements, which involved a big redesign.
• Add support for OpenSSL, LibreSSL and mbed TLS for HTTPS.
• Add a CI pipeline to build Dillo on Ubuntu, MacOS, FreeBSD and Windows (via cygwin).
• Add automatic HTML rendering tests.
• Improve and extend the Dillo manual.

In memory of Sebastian Geerken.

Download

Detailed changes

• Patches by Sebastian Geerken:
  • Floating elements.
  • Redesign of widget sizes ("GROWS").
  • Applied CSS attribute 'width' to all elements, 'height' is now also supported.
  • Suport for 'min-width', 'max-width', 'min-height' and 'max-height'.
  • Suport for 'display: inline-block'.
  • <BUTTON>'s are now inline.
  • Image aspect ratio is preserved when one dimension is specified by a percentage value.
  • New dillorc options 'adjust_min_width' and 'adjust_table_min_width'.
  • Make building of test/ files more robust.
  • Work on collapsing spaces: more cases supported.
  • Fix crash that's possible searching for text while page still being built.
• Patches by corvid:
  • HTML5 character references.
  • Give images lower priority when requesting resources (responsiveness).
  • Reuse of connections for HTTP (disable w/ http_persistent_conns in dillorc).
  • Abort failed queries.
  • HTTP Strict Transport Security (disable with http_strict_transport_security preference in dillorc).
  • Fix bug when closing popup using window manager (bug introduced in 3.0.3).
  • Block mixed content.
  • Improve cookies date recognition.
  • Use Mbed TLS
  • Iterate through the IP addrs for a host when trying to connect().
• Patches by Jeremy Henty:
  • Doxygen fixes.
• Patches by corvid and Benjamin Johnson
  • Move HTTPS from dpi into the browser, enable SNI, check more locations for CA bundles and add --with-ca-certs-file and --with-ca-certs-dir to configure, some improvement to security warning popups, etc.
• Patches by Johannes Hofmann
  • Fix bookmarks DPI crash.
  • Fix OSX compilation issue with xembed.
• Patches by Rodrigo Arias Mallo <rodarima@gmail.com>
  • Fix DuckDuckGo search links
  • Add scroll_step option to control the mouse wheel vertical step
  • Add support for OpenSSL 1.1, OpenSSL 3, mbedTLS 2 and mbedTLS 3
  • Replace configure flag --enable-ssl to --enable-tls
  • Enable TLS support by default for https.
  • Add automatic rendering tests (only enabled with --enable-html-tests).
  • Fix width calculation when using 'min-width' and 'max-width'.
  • Update website URL to https://dillo-browser.github.io/
  • Add ui_tab_height option to control the tab height. Default value increased from 16 to 20 pixels to improve usability.
  • Switch tabs using the mouse wheel by default. Use the new option scroll_switches_tabs to disable the behavior.
  • Fix OpenSSL handling of unexpected EOF without close notify alert.
  • Expand home tilde '~' in the file plugin.
  • Ignore width attribute with relative values for td and th elements.
  • Enable Doxygen for C files and use Awesome Doxygen theme.
  • Fix DPIs extension (.dpi.exe) in Windows systems via Cygwin.
  • Add support for the <main> HTML tag.
  • Fix W3C validator and remove broken WDG validator.
  • Simplify bookmark DPI page style and improve readability.
  • Improve the Dillo manual available from the help button.