fyi -Vincent Begin forwarded message:
> From: Mark Miller <[email protected]> > Date: September 25, 2009 6:15:57 PM CEDT > To: [email protected] > Subject: The Release of Lucene 2.9 > Reply-To: [email protected] > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Hello Lucene users, > > On behalf of the Lucene dev community (a growing community far larger > than just the committers) I would like to announce the release of > Lucene 2.9. > > While we generally try and maintain full backwards compatibility > between major versions, Lucene 2.9 has a variety of breaks that are > spelled out in the 'Changes in backwards compatibility policy' section > of CHANGES.txt. > > We recommend that you recompile your application with Lucene 2.9 > rather than attempting to “drop” it in. This will alert you to any > issues you may have to fix if you are affected by one of the backward > compatibility breaks. As always, its a really good idea to thoroughly > read CHANGES.txt before upgrading. > > Lucene 2.9 comes with a bevy of new features, including: > > * Per segment searching and caching (can lead to much faster reopen > among other things) > > * Near real-time search capabilities added to IndexWriter > > * New Query types > > * Smarter, more scalable multi-term queries (wildcard, range, etc) > > * A freshly optimized Collector/Scorer API > > * Improved Unicode support and the addition of Collation contrib > > * A new Attribute based TokenStream API > > * A new QueryParser framework in contrib with a core QueryParser > replacement impl included. > > * Scoring is now optional when sorting by Field, or using a custom > Collector, gaining sizable performance when scores are not > required. > > * New analyzers (PersianAnalyzer, ArabicAnalyzer, > SmartChineseAnalyzer) > > * New fast-vector-highlighter for large documents > > * Lucene now includes high-performance handling of numeric fields. > Such fields are indexed with a trie structure, enabling simple to > use and much faster numeric range searching without having to > externally pre-process numeric values into textual values. > > --- > > And many, many more features, bug fixes, optimizations, and various > improvements. You can find the full list of changes here: > > http://lucene.apache.org/java/2_9_0/changes/Changes.html > > > Many changes have also occurred in Lucene's Contrib area: > > http://lucene.apache.org/java/2_9_0/changes/Contrib-Changes.html > > > Binary and source distributions are available at > http://www.apache.org/dyn/closer.cgi/lucene/java/ > > Lucene artifacts are also available in the Maven2 repository at > http://repo1.maven.org/maven2/org/apache/lucene/ > > The Next Release: > > The next release will be Lucene 3.0. This should come along shortly, > and will > remove all of the deprecated code in Lucene 2.9. Lucene 3.0 will also > be the > first release to move from Java 1.4 to Java 1.5 as a requirement. > > > Thanks, > > Mark Miller > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iQIcBAEBCgAGBQJKvOy9AAoJEBMFmEzrAZn4rmYP/AsmtlRAOZzCUyGo83pkYyPx > kR2XdaZPUN8Le5RdaW2BuYtm+i3OLhsLFrWeJwCm/DrFM7tTlwLtFGFnYyga3BM6 > L+TCVmgMOke1Mo36E/Sjn6+aPcXLZK/HMb5EHuoYpZZAk7Vx+jsWmTpHPvP5HR4t > ZXNa6CT9wjaK1iV7nvaJnifC5QjPeDncM2qOQWF5wLY26eS/G7a4dXJOsl6IHP7z > uJ2j7fxMSucvSGOzWNjW9SouymVuYqL5m4KyEeiqwUlGvHPfLn1AySmCYClEhSL1 > 5kI0Fmr6z6duPY/LKvTNVTe2S1tQS8DKErtOP2vbclglvuw//dqp/cbjvjP8oTZg > 5B610ehDBNwmKN5DAq8v1PAj0vGj1ygk9hotXFcjGlnEEoTCPegh1P3lg0t0LKlk > vBt5GJC61+8dJMs0BXRznSESV8dl7IjjBzfnGiEqQS1sSGBGxAzgUHaOrVnHW/vh > BfaNwzqFguYvOXMzV8DkwQPpXMOxDMDEHKjAKj3SSYsIAIPLbRP0XwkU2Y6csfoP > rrom1+fZEkNFd/qbQw2i7xhvX1LmShlT6GYezkR9St+fSoWzg2Js44dSpDAYYh33 > 3Ngz6koNyZVCfcwz1oOMI5yz+oD98OICxyG0j/m6w8RtEAhsUE07tX/LEvHp0HPZ > uF1TIGPZcQbC4g3yf8Kz > =WImG > -----END PGP SIGNATURE----- > _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
