From Fedora Project Wiki

(Rails)
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== gdb ==
== gdb ==


Fedora 15 features GDB release 7.3. This, together with [http://sourceware.org/gdb/wiki/ArcherBranchManagement Archer] and Fedora extensions improves debugging experience on Fedora by making the debugger more powerful. The majority of these features were written by Red Hat engineers, thus benefiting all gdb users.  New features for the Fedora 15 release are not limited to:
This new '''GDB''' release 7.3 together with [http://sourceware.org/gdb/wiki/ArcherBranchManagement Archer] and Fedora extensions improves debugging experience on Fedora by making the debugger more powerful. The majority of these features were written by Red Hat engineers, thus benefiting all gdb users.  New features for the Fedora 15 release are not limited to:
* Support for breakpoints at [http://sourceware.org/systemtap/wiki/AddingUserSpaceProbingToAppsSystemtap SystemTap markers (probes)]
* Support for breakpoints at [http://sourceware.org/systemtap/wiki/AddingUserSpaceProbingToAppsSystemtap SystemTap markers (probes)]
* Support for using labels in the program's source
* Support for using labels in the program's source
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More features are listed [http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/src/gdb/NEWS?cvsroot=src upstream] above the line <code>*** Changes in GDB 7.2</code>.
More features are listed [http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/src/gdb/NEWS?cvsroot=src upstream] above the line <code>*** Changes in GDB 7.2</code>.


Numerous important packages within Fedora are pre-built with [[Features/SystemtapStaticProbes|SystemTap static markers]], and these can now be used as the target for breakpoints in gdb.
Numerous important packages within Fedora are pre-built with [https://fedoraproject.org/wiki/Features/SystemtapStaticProbes SystemTap static markers], and these can now be used as the target for breakpoints in gdb.


== OCaml ==
== OCaml ==


Fedora 15 includes OCaml 3.12, a major new release of the OCaml language and compiler.  
Fedora 15 includes '''OCaml''' 3.12, a major new release of the OCaml language, the camlp4 macro language, libraries, and CDuce for XML processing.


New language features include:
New language features include:
* modules are now first-class values
* modules are now first-class values
* nested module open
* nested module open
* open record notation
* open record notation
* mark OO methods which must be overridden in subclasses
* mark OO methods which must be overridden in subclasses
* limited support for [http://pa-do.forge.ocamlcore.org/ delimited overloading] in the language
* limited support for delimited overloading in the language
 
camlp4 and camlp5 macro languages have been revised and extended. The changes are completely backwards compatible. For all details refer to https://fedoraproject.org/wiki/Features/OCaml3.12




== Python ==
== Python ==


The system Python 3 stack has been upgraded to 3.2 (the system Python 2 stack remains at 2.7), bringing in hundreds of fixes and tweaks; for a list of changes refer to http://docs.python.org/dev/whatsnew/3.2.html
The '''Python''' 3 stack in Fedora 15 updates from 3.1 to 3.2 (the system Python 2 stack remains at 2.7). Python 3.2 is the latest release of the Python 3 language which comes with hundreds of fixes and tweaks throughout. For all details refer to https://fedoraproject.org/wiki/Features/Python_3.2.


== Rails ==
== Rails ==


Fedora 15 now includes Ruby on Rails version 3. See the upstream release notes at http://edgeguides.rubyonrails.org/3_0_release_notes.html.
The '''Ruby''' on Rails gems in Fedora 15 updates from 2.3.8 to 3.0.3. Rails 3 is a large update to the Ruby on Rails web framework. It brings many new features such as a polished routing API, new activemailer and activerecord APIs, and many more new enhancements. Since its a major version update there are some API incompatibilities between Rails 3 and Rails 2.3.8. For the details refer to https://fedoraproject.org/wiki/Features/Rails_3.0.3.  





Revision as of 12:54, 21 March 2011

DocsProject Header docTeam1.png


Boost

Package-x-generic-16.pngboost provides a set of portable, peer-reviewed, C++ libraries. In Fedora 15, Boost is brought up to date with the current upstream, version 1.4.6.

With every new release of Boost come new components and libraries. For instance, Boost 1.46 brings ICL, and Boost 1.45 had already brought MSM and Polygon.

Moreover, the existing components and libraries are enhanced with new features and bug fixes. For instance, the Boost.Math components have now become better than the GSL for support to statistical analysis.

For full details, see the Boost pages at http://www.boost.org/

gdb

This new GDB release 7.3 together with Archer and Fedora extensions improves debugging experience on Fedora by making the debugger more powerful. The majority of these features were written by Red Hat engineers, thus benefiting all gdb users. New features for the Fedora 15 release are not limited to:

  • Support for breakpoints at SystemTap markers (probes)
  • Support for using labels in the program's source
  • OpenCL language debugging support
  • Thread debugging of core dumps - priting pthread_t of threads and their TLS variables
  • Python scripting improvements not limited to:
    • GDB values in Python are now callable if the value represents a function address.
    • New module gdb.types for inferior types.
    • New module gdb.printing for writing and registering pretty-printers.

More features are listed upstream above the line *** Changes in GDB 7.2.

Numerous important packages within Fedora are pre-built with SystemTap static markers, and these can now be used as the target for breakpoints in gdb.

OCaml

Fedora 15 includes OCaml 3.12, a major new release of the OCaml language, the camlp4 macro language, libraries, and CDuce for XML processing.

New language features include:

  • modules are now first-class values
  • nested module open
  • open record notation
  • mark OO methods which must be overridden in subclasses
  • limited support for delimited overloading in the language

camlp4 and camlp5 macro languages have been revised and extended. The changes are completely backwards compatible. For all details refer to https://fedoraproject.org/wiki/Features/OCaml3.12


Python

The Python 3 stack in Fedora 15 updates from 3.1 to 3.2 (the system Python 2 stack remains at 2.7). Python 3.2 is the latest release of the Python 3 language which comes with hundreds of fixes and tweaks throughout. For all details refer to https://fedoraproject.org/wiki/Features/Python_3.2.

Rails

The Ruby on Rails gems in Fedora 15 updates from 2.3.8 to 3.0.3. Rails 3 is a large update to the Ruby on Rails web framework. It brings many new features such as a polished routing API, new activemailer and activerecord APIs, and many more new enhancements. Since its a major version update there are some API incompatibilities between Rails 3 and Rails 2.3.8. For the details refer to https://fedoraproject.org/wiki/Features/Rails_3.0.3.