[Lazarus] Lazarus Release Candidate 5 of 1.8.0

Mattias Gaertner nc-gaertnma at netcologne.de
Fri Oct 13 20:18:28 CEST 2017

The Lazarus team is glad to announce the fifth release candidate of
Lazarus 1.8.

The Windows release was built with FPC 3.0.4 final svn version, the Linux release was built with FPC 3.0.4RC1, and the Mac OS release was built with FPC 3.0.2.

The previous release Lazarus 1.6.4 was built with FPC 3.0.2. 

Here is the list of fixes for Lazarus 1.8.x:

Here is the list of changes for Lazarus and Free Pascal:

The release is available for download on SourceForge:

Choose your CPU, OS, distro and then the "Lazarus 1.8 RC5" directory.

Checksums for the SourceForge files:

Minimum requirements:

  2k, XP, Vista, 7, 8, 8.1 and 10, 32 or 64bit.

  gtk 2.8 for gtk2, qt4.5 for qt, qt5.6 for qt5, 32 or 64bit.

Mac OS X:
  10.5 to 10.12; Carbon (32bit), Cocoa (64bit, not stable), qt and qt5 (32 or 64bit).

The svn tag is

For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at:
and later at (after some time for synchronization)

== Why should everybody (including you) test the release candidate? ==

In the past weeks the Lazarus team has stabilized the 1.8 fixes branch.
The resulting 1.8RC5 is now stable enough to be used by any one for
test purposes.

However many of the fixes and new features that where committed since the release of 1.6 required changes to the code of existing features too. While we have tested those ourself, there may still be problems that only occur with very specific configurations or one project in a million.

Yes, it may be that you are the only person with a project, that will not work in the new IDE. So if you do not test, we can not fix it.

Please do not wait for the final release, in order to test. It may be too late. Once the release is out we will have to be more selective about which fixes can be merged for further 1.8.x releases. So it may be, that we can not merge the fix you require. And then you will miss out on all the new features.

== How to test ==

Download and install the 1.8 RC5.
- On Windows you can install as a 2ndary install, that will not affect your current install:
- On other platforms, if you install to a new location you need to use --primary-config-path

In either case you should make backups. (including your primary config)

Open your project in the current Lazarus (1.6.x), and use "Publish Project" from the project menu. This creates a clean copy of your project.

You can then open that copy in the RC5. Please test:
- If you can edit forms in the designer
   - rename components / change properties in Object inspector / Add new events
   - Add components to form / Move components on form
   - Frames, if you use them
- If you can navigate the source code (e.g. jump to implementation)
- Auto completion in source code
- Compile, debug and run
- Anything else you use in your daily work


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