Freepascal user's guide #downloads #documentation #freepascal

The Lazarus team is glad to announce the release of Lazarus 1.8.2. This is a bugfix release.

The release was built with FPC 3.0.4.

Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_1.8.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

Here is the list of fixes for Lazarus 1.8.x:
http://wiki.freepascal.org/Lazarus_1.8_fixes_branch

The release is available for download on SourceForge:
http://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 1.8.2" directory.

Checksums for the SourceForge files:
http://www.lazarus-ide.org/index.php?page=checksums#1_8_2

Minimum requirements:

Windows:
2k, XP, Vista, 7, 8, 8.1 and 10, 32 or 64bit.
optional qt 4.5 or 5.6 for qt apps

FreeBSD/Linux:
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
http://svn.freepascal.org/svn/lazarus/tags/lazarus_1_8_2

For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at:
ftp://ftp.freepascal.org/pub/lazarus/releases/
and later at (after some time for synchronization)
http://mirrors.iwi.me/lazarus/

#lazarus #DB

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Online Package Manager (OPM) is a tool that automates the process of installing, upgrading, configuring Lazarus packages. #Lazarus #LCL #components

The packages are stored in the main repository(see repository column) as zip files, along with a JSON file. #Lazarus #LCL #components

The JSON contains all necessary information about the packages. On request the packages are downloaded/extracted/compiled/installed into the IDE. If available, it's also possible to update a previously installed package from the maintainer webpage(see update column). There's also a web version of the Lazarus Packages Repository available here: http://packages.lazarus-ide.org/
Online package manager is part of Lazarus sources, in directory ($LazarusDir)/components/onlinepackagemanager #Lazarus #LCL #components

The Lazarus team is glad to announce the release of Lazarus 1.8.4. This is a bugfix release.
The release was built with FPC 3.0.4.
Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_1.8.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4
Here is the list of fixes for Lazarus 1.8.x:
http://wiki.freepascal.org/Lazarus_1.8_fixes_branch
The release is available for download on SourceForge:
http://sourceforge.net/projects/lazarus/files/
Choose your CPU, OS, distro and then the "Lazarus 1.8.4" directory.
Checksums for the SourceForge files:
http://www.lazarus-ide.org/index.php?page=checksums#1_8_4

Minimum requirements:
Windows:
2k, XP, Vista, 7, 8, 8.1 and 10, 32 or 64bit.
optional qt 4.5 or 5.6 for qt apps
FreeBSD/Linux:
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
http://svn.freepascal.org/svn/lazarus/tags/lazarus_1_8_4

For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at:
ftp://ftp.freepascal.org/pub/lazarus/releases/
and later at (after some time for synchronization)
http://mirrors.iwi.me/lazarus/

The Lazarus team is glad to announce the first release candidate of Lazarus 2.0.

This release was built with FPC 3.0.4.
The previous release Lazarus 1.8.4 was built with FPC 3.0.4 as well.

Here is the list of fixes for Lazarus 2.0.x:
* http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

Here is the list of changes for Lazarus and Free Pascal:
* http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
* http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

The release is available for download on SourceForge:
* http://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 2.0RC1" directory.

Checksums for the SourceForge files:
* http://www.lazarus-ide.org/index.php?page=checksums#2_0_0RC1

Minimum requirements:
* Windows: 2k, XP, Vista, 7, 8, 8.1 and 10, 32 or 64bit.
* FreeBSD/Linux: 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, beta), qt and qt5 (32 or 64bit).

The svn tag is
* http://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_0_RC1

For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/ and later at (after some time for synchronization) http://mirrors.iwi.me/lazarus/

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

In the past weeks the Lazarus team has stabilized the 2.0 fixes branch.
The resulting 2.0RC1 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 1.8 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 2.0.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 2.0 RC1.
- On Windows you can install as a 2ndary install, that will not affect your current install:
http://wiki.lazarus.freepascal.org/Multiple_Lazarus#Installation_of_multiple_Lazarus
- 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 (1.8.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 RC1. 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

With the Lazarus Release Candidate 1 for 2.0 a new debugger for Mac users has been shipped.
It is based on LLDB, which is provided by apple and is ready to use. So there should no longer be a need to build and codesign gdb.

As the LLDB integration is all new, it needs a lot of testing. So this is a ...

call to all Mac users:
Please test the new LLDB based Lazarus debugger.

To test the new debugger, please download the Lazarus 2.0RC1.

- Open the IDE and install the package "LazDebuggerFpLLdb".
It should be in the list of available packages, but if not it is in components/lazdebuggers/lazdebuggerfplldb
Make sure to use the one with "Fp" in the name. (There also is LazDebuggerLLdb, but it is not as good.)
Restart the IDE.

- Go to Tools > Options > Debugger
In the "debugger type" dropdown, you should find and select "LLDB debugger (with fpdebug)"
The edit below this (where you normally have the path to gdb), should be changed to the path of lldb.
(lldb comes with the tools from Apple; and as such it is already codesigned by Apple).


To report any problems:
Start Lazarus from a shell with the following command line (replace pathes according to your installation):

You may need to use startlazarus, or specify the re-build lazarus which may be in your home folder / pcp.

    /path/to/lazarus/lazarus.app/Contents/MacOS/lazarus --debug-log=/path/to/yourfiles/laz.log --debug-enable=DBG_CMD_ECHO,DBG_STATE,DBG_DATA_MONITORS,DBGMI_QUEUE_DEBUG,FPDBG_DWARF_ERRORS,FPDBG_DWARF_WARNINGS,FPDBG_DWARF_VERBOSE_LOAD,FPDBG_DWARF_DATA_WARNINGS,DBG_VERBOSE,DBG_WARNINGS,DBG_STATE,DBG_EVENTS,DBG_THREAD_AND_FRAME

Attach the log file after reproducing the error.

Fpcupdeluxe, a GUI installer for FPC and Lazarus. Based on fpcup

The main purpose of fpcdeluxe is to provide a means for installing and updating multiple versions of FPC and Lazarus in a self-contained manner. Self-contained meaning that an install by fpcupdeluxe will have no influence on (interference with) your system: Hence you can install multiple versions of FPC and Lazarus.

Fpcupdeluxe makes cross-compiling easy: just select a CPU and an OS, and press install crosscompiler. If libraries and/or binary tools are needed, fpcupdeluxe will try to get them online.

The Lazarus team is glad to announce the second release candidate of Lazarus 2.0.

This release was built with FPC 3.0.4.
The previous release Lazarus 1.8.4 was built with FPC 3.0.4 as well.

Here is the list of fixes for Lazarus 2.0.x:
http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

The release is available for download on SourceForge:
http://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 2.0RC2" directory.

Checksums for the SourceForge files:
http://www.lazarus-ide.org/index.php?page=checksums#2_0_0RC2

Minimum requirements:

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

FreeBSD/Linux:
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, beta), qt and qt5 (32 or 64bit).

The svn tag is
http://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_0_RC2

For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/ and later at (after some time for synchronization) http://mirrors.iwi.me/lazarus/

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

In the past weeks the Lazarus team has stabilized the 2.0 fixes branch. The resulting 2.0RC2 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 1.8 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 2.0.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 2.0 RC2.
- On Windows you can install as a 2ndary install, that will not affect
your current install:
http://wiki.lazarus.freepascal.org/Multiple_Lazarus#Installation_of_multiple_Lazarus
- 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 (1.8.x), and use "Publish2 Project" from the project menu. This creates a clean copy of your
project.

You can then open that copy in the RC2. 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

The Lazarus team is glad to announce the third release candidate of Lazarus 2.0.

This release was built with FPC 3.0.4.
The previous release Lazarus 1.8.4 was built with FPC 3.0.4 as well.


Here is the list of fixes for Lazarus 2.0.x:
http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

The release is available for download on SourceForge:
http://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 2.0RC3" directory.

Checksums for the SourceForge files:
http://www.lazarus-ide.org/index.php?page=checksums#2_0_0RC3

Minimum requirements:

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

FreeBSD/Linux:
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, beta), qt and qt5 (32 or 64bit).

The svn tag is
http://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_0_RC3

For people who are blocked by SF, the Lazarus releases from SourceForge
are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/
and later at (after some time for synchronization)
http://mirrors.iwi.me/lazarus/

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

In the past weeks the Lazarus team has stabilized the 2.0 fixes branch. The resulting 2.0RC3 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 1.8 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 2.0.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 2.0 RC3.

On Windows you can install as a 2ndary install, that will not affect your current install:
http://wiki.lazarus.freepascal.org/Multiple_Lazarus#Installation_of_multiple_Lazarus
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 (1.8.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 RC3. 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

Roadmap for FPC and Lazarus

All of these items will be implemented in the stable version 2.0

Stable version of Lazarus 2.0
the next official version of Lazarus
√ Make pas2js self-compiling - Finalized
(allows to embed in browser, Atom, Visual Studio code)
√ Pas2Js will become integrated into the IDE - Finalized
just one mouse click away
Docking:
of course there will be Bug fixing especially of the Docking Items
√ Installer - Cocoa 64 Bit MAC - Finalized
the problem of Apple and their newest OS Cocoa (64 bit) will be solved
√ LLDB syntax changes - Finalized
(Low Level Virtual Machine Debugger is the official name)
√ Nested Classes are implemented - Finalized
Type
TA = Class
Type
TB = Class
MyBField : String;
Procedure MyBMethod;
end;
MyAField : Integer;
Procedure MyAMethod;
end;
√ Type Alias are implemented - Finalized
that's a simple alias type. Type Alias type is defined like this:
type a = type b
Creates a new distinct type, query for example via typeinfo.
√ Pas2JS Anonymous functions - Finalized 15/12/2018 ← ←

Roadmap for the Rest of the year 2018 and the coming year 2019

Dynamic linking of Packages (like BPL in Delphi)
Pas2JS Advanced records - tendered. project started ←
Pas2JS Attributes - extended RTTI
Pas2JS Generics
Pas2JS Array of const/Type helper
Pas2JS Overflow checking
Colour schemes for the Ide

Future Plans

Adding CSS Properties to the Object Inspector for Pas2JS
Extending the IDE For Pas2 JS
LONG TERM PROJECT: Creating new WEB environment for Lazarus as a Web-App

https://www.blaisepascalmagazine.eu/

The Lazarus team is glad to announce the release of Lazarus 2.0.0.

This release was built with FPC 3.0.4.
The previous release Lazarus 1.8.4 was built with FPC 3.0.4 as well.


Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

Here is the list of fixes for Lazarus 2.0.x:
http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

The release is available for download on SourceForge:
https://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 2.0.0" directory.

Checksums for the SourceForge files:
https://www.lazarus-ide.org/index.php?page=checksums#2_0_0

Minimum requirements:

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

FreeBSD/Linux:
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, beta), qt and
qt5 (32 or 64bit).

The svn tag is
https://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_0

For people who are blocked by SF, the Lazarus releases from SourceForge
are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/
and later at (after some time for synchronization)
http://mirrors.iwi.me/lazarus/

Sourceforge: March 2019, “Community Choice” Project of the Month – Lazarus
https://sourceforge.net/blog/march-2019-community-choice-project-month-lazarus/

«For our March 2019 “Community Choice” Project of the Month, the community elected Lazarus, rapid applications development tool and libraries for FPC. Lazarus was previously elected “Community Choice” Project of the Month in August 2017 where developer Mattias Gaertner spoke about the project’s developments and direction. Recently we caught up with Mattias to find out how the project has been doing since then.

SourceForge (SF): What significant changes have occurred with your project since you were voted Project of the Month in August 2017?
Mattias Gaertner (MG): All the next big things promised when Lazarus was last time Sourceforge project of the month have been achieved: QT5, Cocoa for Mac OS, Gtk3, Pas2js and the Online package manager. The Online package manager (OPM) allows finally to browse, download and install packages with a few clicks. Pas2js is now fully supported by Lazarus and allows to write Web and nodejs applications in ObjectPascal and compile to JavaScript. The Cocoa backend was improved so much, that the IDE now runs almost better than the carbon version. Besides these successes, there are some more: lldb debugging on macOS, better High DPI support and of course hundreds of bug fixes, minor features, and more packages.

SF: Have any of your project goals changed since then?
MG: No.

SF: What project goals have you achieved so far?
MG: Lazarus nowadays supports a dozen platforms in its official releases and many more platforms are maintained by third parties. The visual designer allows to create whole applications with a few mouse clicks. The IDE supports true x-platform editing and navigation. Over the years many more goals have been added, like better Delphi compatibility, converters, Web development and hundreds of packages for all kinds of stuff – a whole eco system.

SF: What can we look forward to with Lazarus?
MG: Creating Web apps using the designer, Cocoa and lldb as default backends on macOS, Lazarus qt5 debs/rpms.

SF: Is there anything else we should know?
MG: A big thanks to the community for voting Lazarus as project of the month, for sending so many the patches and all the other contributions.

The Lazarus team is glad to announce that:

The release of Lazarus 2.0.2

has been scheduled for around

16th to 18th April 2019

This release will be built with FPC 3.0.4.
The previous release Lazarus 2.0.0 was built with FPC 3.0.4 as well.

Here is the list of fixes for Lazarus 2.0.2 (since 2.0.0):
http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

We would invite everyone to provide their feedback to help us improve this upcoming release. Please let as know in particular:
- Any fixes made to trunk, that you believe should still be merged to
the fixes branch (fixes that are not listed on the above wiki page)
- Any regressions that happened in fixes branch since the last release
- Other urgent matters, you believe we should know before the release.

Please attempt to provide your feedback by: 10th April 2019

More info on our release process can be found at (work in progress):
http://wiki.lazarus.freepascal.org/Lazarus_release_engineering

Information about the previous release:
http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

The intended minimum requirements for the release will be:

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

FreeBSD/Linux:
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, beta), qt and qt5 (32 or 64bit).

The Lazarus team is glad to announce the release of Lazarus 2.0.2.

This release was built with FPC 3.0.4.
The previous release Lazarus 2.0.0 was built with FPC 3.0.4 as well.

Here is the list of changes for Lazarus and Free Pascal:
http://wiki.lazarus.freepascal.org/Lazarus_2.0.0_release_notes
http://wiki.lazarus.freepascal.org/User_Changes_3.0.4

Here is the list of fixes for Lazarus 2.0.x:
http://wiki.freepascal.org/Lazarus_2.0_fixes_branch

The release is available for download on SourceForge:
https://sourceforge.net/projects/lazarus/files/

Choose your CPU, OS, distro and then the "Lazarus 2.0.2" directory.

Checksums for the SourceForge files:
https://www.lazarus-ide.org/index.php?page=checksums#2_0_2

Minimum requirements:

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

FreeBSD/Linux:
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, beta), qt and
qt5 (32 or 64bit).

The svn tag is
https://svn.freepascal.org/svn/lazarus/tags/lazarus_2_0_2

For people who are blocked by SF, the Lazarus releases from SourceForge
are mirrored at: ftp://ftp.freepascal.org/pub/lazarus/releases/
and later at (after some time for synchronization)
http://mirrors.iwi.me/lazarus/

FPC has gained several new features lately:

🗸 Multiple helper types can now be active at the same time
🗸 Support has been added for custom attributes
🗸 The compiler can now generate LLVM bitcode for select platforms (Darwin/x86-64, Linux/x86-64, Linux/AArch64, Linux/ARMHF)

The next FPC release, version 3.2, is planned for later this year. While it will not have support for the above list, it will have its own collection of new features and fixes!

https://wiki.freepascal.org/FPC_New_Features_Trunk