Mar 23 Giu 2015     

Annunciato il rilascio della prima release candidate di NetBSD 7.0

Many changes have been made since 6.0. Here are a few highlights:

  • Greatly improved support for modern Intel and Radeon graphics hardware through a port of the Linux DRM/KMS code. Most X.Org components have been updated as well.
  • ARM multiprocessor support
  • Support for new ARM boards, some of which are listed below:
    • Raspberry Pi 2
    • ODROID-C1
    • BeagleBoard-xM
    • BeagleBone
    • BeagleBone Black
    • Banana Pi
    • Cubieboard 2
    • Cubietruck
    • Merii Hummingbird
    • Marvell ARMADA XP
    • GlobalScale MiraBox
    • Kobo
    • Sharp Netwalker PC-Z1
  • GPT support in sysinst
  • Lua kernel scripting
  • Multiprocessor USB stack
  • Many improvements to NPF, the NetBSD packet filter
  • GCC 4.8.4 (and optionally, LLVM/Clang 3.6.1)
 
Lun 06 Ago 2012     

Oracle ha rilasciato una nuova versione del suo RDBMS MySQL

MySQL 5.5.27 is a new version of the 5.5 production release ofthe world's most popular open source database. MySQL 5.5.27 is recommended for use on production systems.
MySQL 5.5 includes several high-impact enhancements to improve the performance and scalability of the MySQL Database, taking advantage of the latest multi-CPU and multi-core hardware and operating systems. In addition, with release 5.5, InnoDB is now the default storage engine for the MySQL Database, delivering ACID transactions, referential integrity and crash recovery by default.

MySQL 5.5 also provides a number of additional enhancements including:
  • Significantly improved performance on Windows, with various Windows specific features and improvements
  • Higher availability, with new semi-synchronous replication and Replication Heart Beat
  • Improved usability, with Improved index and table partitioning, SIGNAL/RESIGNAL support and enhanced diagnostics, including a new Performance Schema monitoring capability.
Functionality Added or Changed:

Important Change: The YEAR(2) data type is now deprecated because it is problematic. Support for YEAR(2) will be removed in a future release of MySQL. For more information, see YEAR(2) Limitations and Migrating to YEAR(4) (http://dev.mysql.com/doc/refman/5.5/en/migrating-to-year4.html).

Bugs Fixed:
  • InnoDB: An assertion could be raised if an InnoDB table was moved to a different database using ALTER TABLE ... RENAME while the database was being dropped by DROP DATABASE. (Bug #13982017)
  • Sessions could end up deadlocked when executing a combination of SELECT, DROP TABLE, KILL, and SHOW ENGINE INNODB STATUS. (Bug #60682, Bug #12636001)
 
Mer 22 Feb 2012     

Annunciato il rilascio di MySQL 5.5.21, nuova versione del RDMBS (Relational Database Management System) open source

MySQL 5.5.21 is a new version of the 5.5 production release of the world's most popular open source database. MySQL 5.5.21 is recommended for use on production systems. MySQL 5.5 includes several high-impact enhancements to improve the performance and scalability of the MySQL Database, taking advantage of the latest multi-CPU and multi-core hardware and operating systems. In addition, with release 5.5, InnoDB is now the default storage engine for the MySQL Database, delivering ACID transactions, referential integrity and crash recovery by default.

Functionality Added or Changed

A new CMake option, MYSQL_PROJECT_NAME, can be set on Windows or Mac OS X to be used in the project name. (Bug #13551687)

Bugs Fixed

Performance: InnoDB Storage Engine: Memory allocation for InnoDB tables was reorganized to reduce the memory overhead for large numbers of tables or partitions, avoiding situations where the "resident set size" could grow regardless of FLUSH TABLES statements. The problem was most evident for tables with large row size. Some of the memory that was formerly allocated for every open table is now allocated only when the table is modified for the first time. (Bug #11764622, Bug #57480)

Incompatible Change: An earlier change (in MySQL 5.1.62 and 5.5.21) was found to modify date-handling behavior in General Availability-status series (MySQL 5.1 and 5.5). This change has been reverted.

The change was that several functions became more strict when passed a DATE() function value as their argument, thus they rejected incomplete dates with a day part of zero. These functions were affected: CONVERT_TZ(), DATE_ADD(), DATE_SUB(), DAYOFYEAR(), LAST_DAY(), TIMESTAMPDIFF(), TO_DAYS(), TO_SECONDS(), WEEK(), WEEKDAY(), WEEKOFYEAR(), YEARWEEK(). The previous behavior has been restored. (Bug #13458237)

InnoDB Storage Engine: A Valgrind error was fixed in the function os_aio_init(). (Bug #13612811)

InnoDB Storage Engine: The server could crash when creating an InnoDB temporary table under Linux, if the $TMPDIR setting points to a tmpfs filesystem and innodb_use_native_aio is enabled, as it is by default in MySQL 5.5.4 and higher. The entry in the error log looked like:

101123 2:10:59 InnoDB: Operating system error number 22 in a file operation.
InnoDB: Error number 22 means 'Invalid argument'.
The crash occurred because asynchronous I/O is not supported on tmpfs in some Linux kernel versions. The workaround was to turn off the innodb_use_native_aio setting or use a different temporary directory. The fix causes InnoDB to turn off the innodb_use_native_aio setting automatically if it detects that the temporary file directory does not support asynchronous I/O. (Bug #13593888, Bug #11765450, Bug #58421)

InnoDB Storage Engine: References to C preprocessor symbols and macros HAVE_purify, UNIV_INIT_MEM_TO_ZERO, and UNIV_SET_MEM_TO_ZERO were removed from the InnoDB source code. They were only used in debug builds instrumented for Valgrind. They are replaced by calls to the UNIV_MEM_INVALID() macro. (Bug #13418934)

InnoDB Storage Engine: The MySQL server could halt with an assertion error:

InnoDB: Failing assertion: page_get_n_recs(page) > 1
Subsequent restarts could fail with the same error. The error occurred during a purge operation involving the InnoDB change buffer. The workaround was to set the configuration option innodb_change_buffering=inserts. (Bug #13413535, Bug #61104)

InnoDB Storage Engine: With 1024 concurrent InnoDB transactions running concurrently and the innodb_file_per_table setting enabled, a CREATE TABLE operation for an InnoDB table could fail. The .ibd file from the failed CREATE TABLE was left behind, preventing the table from being created later, after the load had dropped.

The fix adds error handling to delete the erroneous .ibd file. This error was less likely to occur in MySQL 5.5 and 5.6, because raising the number of InnoDB undo slots increased the number of simultaneous transactions needed to trigger the bug, from 1K to 128K. (Bug #12400341)

Replication: Executing mysqlbinlog with the --start-position=N option, where N was equal either to 0 or to a value greater than the length of the dump file, caused it to crash.

This issue was introduced in MySQL 5.5.18 by the fix for Bug #32228 and Bug #11747416. (Bug #13593869, Bug #64035)

Replication: On Windows replication slave hosts, STOP SLAVE took an excessive length of time to complete when the master was down. (Bug #11752315, Bug #43460)

A query that used an index on a CHAR column referenced in a BETWEEN clause could return invalid results. (Bug #13463488, Bug #63437)

Expressions that compared a BIGINT column with any non-integer constant were performed using integers rather than decimal or float values, with the result that the constant could be truncated. This could lead to any such comparison that used <, >, <=, >=, =, !=/<>, IN, or BETWEEN yielding false positive or negative results. (Bug #13463415, Bug #11758543, Bug #63502, Bug #50756)

When the optimizer performed conversion of DECIMAL values while evaluating range conditions, it could produce incorrect results. (Bug #13453382)

When running mysqldump with both the --single-transaction and --flush-logs options, the flushing of the log performed an implicit COMMIT (see Section 12.3.3, "Statements That Cause an Implicit Commit"), causing more than one transaction to be used and thus breaking consistency. (Bug #12809202, Bug #61854)

It was possible in the event of successive failures for mysqld_safe to restart quickly enough to consume excessive amounts of CPU. Now, on systems that support the sleep and date system utilities, mysqld_safe checks to see whether it has restarted more than 5 times in the current second, and if so, waits 1 second before attempting another restart. (Bug #11761530, Bug #54035)

When used with the --xml option, mysqldump --routines failed to dump any stored routines, triggers, or events. (Bug #11760384, Bug #52792)

It was possible on replication slaves where FEDERATED tables were in use to get timeouts on long-running operations, such as Error 1160 Got an error writing communication packets. The FEDERATED tables did not need to be replicated for the issue to occur. (Bug #11758931, Bug #51196)

References: See also Bug #12896628, Bug #61790.

If an attempt to initiate a statement failed, the issue could not be reported to the client because it was not prepared to receive any error messages prior to the execution of any statement. Since the user could not execute any queries, they were simply disconnected without providing a clear error.

After the fix for this issue, the client is prepared for an error as soon as it attempts to initiate a statement, so that the error can be reported prior to disconnecting the user. (Bug #11755281, Bug #47032)

Using myisamchk with the sort recover method to repair a table having fixed-width row format could cause the row pointer size to be reduced, effectively resulting in a smaller maximum data file size. (Bug #48848, Bug #11756869)

On Windows, the server incorrectly constructed the full path name of the plugin binary for INSTALL PLUGIN and CREATE FUNCTION ... SONAME. (Bug #45549, Bug #11754014)

The stored routine cache was subject to a small memory leak that over time or with many routines being used could result in out-of-memory errors. (Bug #44585, Bug #11753187)

Il changelog completo è disponibile a questa pagina. Download a partire da questa pagina.

 
Ven 17 Feb 2012     

Mozilla ha rilasciato la versione 10.0.2 del suo browser web Firefox. Note di rilascio disponibili a questa pagina

Changelog:

  • FIXED: Security fixes
  • FIXED: Java applets sometimes caused text input to become unresponsive
  • NEW: Most add-ons are now compatible with new versions of Firefox by default
  • NEW: The forward button is now hidden until you navigate back
  • NEW: Anti-Aliasing for WebGL is now implemented
  • NEW: CSS3 3D-Transforms are now supported
  • HTML5: New element for bi-directional text isolation, along with supporting CSS properties
  • HTML5: Full Screen APIs allow you to build a web application that runs full screen
  • DEVELOPER: We've added IndexedDB APIs to more closely match the specification
  • DEVELOPER: Inspect tool with content highlighting, includes new CSS Style Inspector
  • FIXED: Some users may experience a crash when moving bookmarks
  • FIXED:Silverlight video may not play on some Macintosh hardware

Download da questa pagina

 
Ven 10 Feb 2012     

Rilasciata la versione 8.0 della libreria grafica Mesa 3D. Mesa 3D 8.0 implementa le API OpenGL 3.0 e la versione 1.30 di GLSL (OpenGL Shading Language). Le nuove funzionalità, che dipendono dall'hardware e dai driver utilizzati, sono le seguenti

New features
  • GL_ARB_ES2_compatibility (r300g, r600g)
  • GL_ARB_depth_buffer_float (r600g)
  • GL_ARB_vertex_type_2_10_10_10_rev (r600g)
  • GL_ARB_texture_storage (gallium drivers and swrast)
  • GL_EXT_packed_float (i965)
  • GL_EXT_texture_array (r600g, i965)
  • GL_EXT_texture_shared_exponent (i965)
  • GL_NV_fog_distance (all gallium drivers, nouveau classic)
  • GL_NV_primitive_restart (r600g)
  • GL_OES_EGL_image_external (gallium drivers)
  • GL_OES_compressed_ETC1_RGB8_texture (softpipe, llvmpipe)
  • ARB_texture_rgb10_a2ui (softpipe, r600g)
  • Many updates to the VMware svga Gallium driver

Download a partire da questa pagina.

 
Mer 05 Ott 2011     

Rilasciato VMWare Player 4.0, software freeware con cui è possibile far eseguire immagini realizzate con VMWare. Come per VMWare Workstation 8.0 anche VMWare player 4.0 potrà girare solo su PC con processori a 64 bit. Note di rilascio a questa pagina

The hardware requirements to install this version of Workstation have changed. Workstation now requires a relatively modern 64-bit CPU.

This version of Workstation includes many hardware improvements. To try new hardware features, you must upgrade the hardware version of your virtual machine or create a new virtual machine that uses the latest virtual hardware version.

  • The display technology has been changed to provide a better experience for Unity users and users who have multiple monitors. These changes also allow you to add a projector to your laptop without restarting your virtual machine.
  • Virtual machines can now support up to 64GB of memory. The host system should have more than 64GB of memory to use this feature.
  • An HD Audio device is available for Windows Vista, Windows 7, Windows 2008, and Windows 2008 R2 guests. The HD Audio device is compatible with the RealTek ALC888 7.1 Channel High Definition Audio Codec.
  • USB 3.0 support is available for Linux guests running kernel version 2.6.35 or later (Ubuntu 10.10) through a new virtual xHCI USB controller. To enable this feature, add the following line to the .vmx file: usb_xhci.present = "true". Do not enable this feature for Windows guests. Because Windows does not currently have a generic xHCI driver, this feature will not work in Windows.
  • Bluetooth devices on the host can now be shared with Windows guests. With the latest hardware version, Bluetooth devices that are paired to the host system radio are available to Windows guests and can be paired from within the guest. You should not pair Bluetooth audio devices, such as headphones, or Bluetooth input devices, such as keyboards and mice, to a guest.

Il download di VMWare Player è possibile da questa pagina (è necessario essere registrati).

 
Ven 23 Set 2011     

Rilasciato VMWare Workstation 8.0, ultima versione del noto software di virtualizzazione. Sarà possibile utilizzare VMWare 8.0 solo su PC con processori a 64 bit, questa la novità principale per questa versione. Le Note di rilascio sono disponibili a questa pagina.

This version of Workstation includes many hardware improvements. To try new hardware features, you must upgrade the hardware version of your virtual machine or create a new virtual machine that uses the latest virtual hardware version.

  • The display technology has been changed to provide a better experience for Unity users and users who have multiple monitors. These changes also allow you to add a projector to your laptop without restarting your virtual machine.
  • Virtual machines can now support up to 64GB of memory. The host system should have more than 64GB of memory to use this feature.
  • An HD Audio device is available for Windows Vista, Windows 7, Windows 2008, and Windows 2008 R2 guests. The HD Audio device is compatible with the RealTek ALC888 7.1 Channel High Definition Audio Codec.
  • USB 3.0 support is available for Linux guests running kernel version 2.6.35 or later (Ubuntu 10.10) through a new virtual xHCI USB controller. To enable this feature, add the following line to the .vmx file: usb_xhci.present = "true". Do not enable this feature for Windows guests. Because Windows does not currently have a generic xHCI driver, this feature will not work in Windows.
  • Bluetooth devices on the host can now be shared with Windows guests. With the latest hardware version, Bluetooth devices that are paired to the host system radio are available to Windows guests and can be paired from within the guest. You should not pair Bluetooth audio devices, such as headphones, or Bluetooth input devices, such as keyboards and mice, to a guest.
  • You can now enable Virtual VT-X/EPT or AMD-V/RVI in the processor settings interface. With this feature, applications running in a guest can take advantage of these virtualization technologies. You can also run 64-bit guest operating systems inside of vSphere running inside Workstation.
 
Mer 23 Mar 2011     

Mozilla ha annunciato il rilascio di Firefox 4, la versione finale arriva dopo il rilascio di 12 versioni beta e due release candidate.

Mozilla, a global, nonprofit organization dedicated to making the Web better, is proud to release Mozilla Firefox 4, the newest version of the popular, free and open source Web browser.

Secondo Mozilla la versione 4 è la versione più veloce di Firefox, Firefox 4 è da due a sei volte più veloce di Firefox 3.
Firefox 4 è dotato anche di un nuovo add-ons manager, supporto per HTML5, App Tabs. Il motore JavaScript incorpora il nuovo compilatore JägerMonkey JIT. Con Firefox 4 un eventuale problema con Adobe Flash, Apple QuickTime o Silverlight di Microsoft non causerà il blocco del browser. Se uno di questi plugin si dovesse bloccare non influenzerebbe il resto di Firefox, sarà sufficiente ricaricare la pagina per riavviare il plugin.
Firefox 4 è disponibile in oltre 80 lingue per sistemi Windows, Linux, Max OS X. Il download è possibile da questa pagina.

What’s New in Firefox 4:

Fastest Firefox Ever

  • Performance: Firefox is up to six times faster than the previous release. With improved start-up and page load times, speedy Web app performance and hardware accelerated graphics, Firefox is optimized for rich, interactive websites.

Streamlined Interface

  • App Tabs: give a permanent home to frequently visited sites like Web mail, Twitter, Pandora, Flickr.
  • Switch to Tab: easily find and switch to any open tab from your Awesome Bar without opening duplicate tabs.
  • Panorama: drag and drop tabs into manageable groups to save time while navigating many open tabs.

Private and Secure Synchronization

  • Firefox Sync: access your Awesome Bar history, bookmarks, open tabs, passwords and form data across multiple computers and mobile devices.

Most Customizable

  • New Add-ons Manager: easily discover and install more than 200,000 add-ons to customize the features, functionality and look of Firefox.

Private and Secure

  • Do Not Track: Firefox is leading the Web towards a universal standard Do Not Track feature that allows users to opt-out of tracking used for behavioral advertising.
  • Firefox puts privacy first, fixing flaws in some Web standards to prevent others from accessing your browser history.
  • HTTP Strict Transport Security (HSTS): automatically establishes secure connections to stop "man in the middle" attacks and keep sensitive data safe from interception during the log-in process.
  • Content Security Policy (CSP): prevent cross-scripting attacks by allowing sites to explicitly tell the browser which content is legitimate.

Cutting Edge Tools for Web Developers:

  • The JavaScript engine incorporates the new JägerMonkey JIT compiler, along with enhancements to the existing TraceMonkey JIT and SpiderMonkey’s interpreter for faster page-load speed and better performance of Web apps and games.
  • HTML5 support in Firefox includes hardware accelerated, high-definition video (WebM), 3D graphics, offline data storage, professional typography, touchscreen interfaces and the Mozilla Audio API to help create visual experiences for sound and more.
  • Firefox 4 also improves existing tools like CSS, Canvas and SVG to enable developers to make exciting Web pages.
  • Firefox provides uninterrupted browsing when there is a crash in the Adobe Flash, Apple QuickTime or Microsoft Silverlight plugins. If one of these plugins crashes or freezes, it won’t affect the rest of Firefox. Simply reload the page to restart the plugin.
 
Ven 24 Dic 2010     

Annunciato il rilascio di Linux Mint 201012 "Debian Edition".

  • All Mint 10 features
  • 64-bit support
  • Performance boost (using cgroup, the notorious "4 lines of code better than 200" in user-space)
  • Installer improvements (multiple HDDs, grub install on partitions, swap allocation, btrfs support)
  • Better fonts (Using Ubuntu’s libcairo, fontconfig and Ubuntu Font Family) and language support (ttf-wqy-microhei, ttf-sazanami-mincho, ttf-sazanami-gothic installed by default)
  • Better connectivity and hardware support (pppoe, pppoeconf, gnome-ppp, pppconfig, libgl1-mesa-dri, libgl1-mesa-glx, libgl1-mesa-dev, mesa-utils installed by default)
  • Better sound support (addressing conflicts between Pulse Audio and Flash)
  • Updated software and packages

Download a partire da questa pagina, o direttamente da questi link
linuxmint-debian-201012-gnome-dvd-i386.iso (985MB),
linuxmint-debian-201012-gnome-dvd-amd64.iso (974MB).

 
Mer 22 Dic 2010     

Oracle ha rilasciato la versione 4.0 del software di virtualizzazione VirtualBox. Download da questa pagina.

Highlights of Oracle VM VirtualBox 4.0:
New Open Architecture – Oracle and community developers can now create extensions that customize Oracle VM VirtualBox and add features not previously available.
Enhanced Usability – A new scalable display mode enables users to view more virtual displays on their existing monitors. Improvements to VM management, including visual VM previews, an optional attributes display, and easy launch shortcut creation enables administrators and power users to customize the interface to make it as simple or as comprehensive as required.
Increased capacity and throughput – A new asynchronous I/O model for networked (iSCSI) and local storage delivers significant storage related performance improvements, while new optimizations allow larger datacenter-class workloads, such as Oracle's middeware, to be run on 32-bit Windows hosts for testing and demo purposes.
Powerful virtual appliance sharing capabilities – Enhanced support for standards-compliant OVF appliances and added support for OVA format descriptors. All information about a VM may be stored in a single folder to facilitate easier direct sharing among VMs.
Support for latest virtual hardware – A new, modern virtual chipset supporting PCI Express and other hardware enhancements including high definition audio devices helps ensure support for the most demanding virtual workloads.