# \#1502: Upgrade to Lucene 3.5 **URL:** \ **Category:** Elasticsearch\ **Created:** [November 28, 2011, 1:41pm UTC](https://discuss.elastic.co/t/1502-upgrade-to-lucene-3-5/5994 "2011-11-28T13:41:06Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![phobos182](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/phobos182/32/3011_2.png) [@phobos182](https://discuss.elastic.co/u/phobos182)\ **Post date:** [November 28, 2011, 1:41pm UTC](https://discuss.elastic.co/t/1502-upgrade-to-lucene-3-5/5994/1 "2011-11-28T13:41:06Z")
I'm really looking forward to the RAM requirement changes in Lucene 3.5. Do you know when the next release of ES will be released? I believe this will require reindexing all of my documents, but I am not sure. ---
**Author:** ![Michael\_McCandless](https://avatars.discourse-cdn.com/v4/letter/m/e47c2d/32.png) [@Michael\_McCandless](https://discuss.elastic.co/u/Michael_McCandless)\ **Post date:** [November 28, 2011, 2:09pm UTC](https://discuss.elastic.co/t/1502-upgrade-to-lucene-3-5/5994/2 "2011-11-28T14:09:17Z")
That RAM reduction of the terms index does not require reindexing. Mike [http://blog.mikemccandless.com](http://blog.mikemccandless.com) On Mon, Nov 28, 2011 at 8:41 AM, phobos182 [phobos182@gmail.com](mailto:phobos182@gmail.com) wrote: > I'm really looking forward to the RAM requirement changes in Lucene 3.5. Do > you know when the next release of ES will be released? I believe this will > require reindexing all of my documents, but I am not sure. > > -- > View this message in context: [http://elasticsearch-users.115913.n3.nabble.com/1502-Upgrade-to-Lucene-3-5-tp3542212p3542212.html](http://elasticsearch-users.115913.n3.nabble.com/1502-Upgrade-to-Lucene-3-5-tp3542212p3542212.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [November 28, 2011, 2:14pm UTC](https://discuss.elastic.co/t/1502-upgrade-to-lucene-3-5/5994/3 "2011-11-28T14:14:24Z")
As Mike noted, it does not require reindexing. 0.18 branch already has Lucene 3.5, I waited a bit to get the new version of netty (the networking lib) which fixes important bugs, and I integrated it today. So I expect a new version (0.18.5) to be released tomorrow. On Mon, Nov 28, 2011 at 3:41 PM, phobos182 [phobos182@gmail.com](mailto:phobos182@gmail.com) wrote: > I'm really looking forward to the RAM requirement changes in Lucene 3.5. Do > you know when the next release of ES will be released? I believe this will > require reindexing all of my documents, but I am not sure. > > -- > View this message in context: > [http://elasticsearch-users.115913.n3.nabble.com/1502-Upgrade-to-Lucene-3-5-tp3542212p3542212.html](http://elasticsearch-users.115913.n3.nabble.com/1502-Upgrade-to-Lucene-3-5-tp3542212p3542212.html) > Sent from the Elasticsearch Users mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:47am UTC](https://discuss.elastic.co/t/1502-upgrade-to-lucene-3-5/5994/4 "2017-07-06T03:47:18Z")
Closed on July 6, 2017, 3:47am UTC