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The Eclipse Public License (EPL) is an open source software license used by the Eclipse Foundation for its software. It replaces the Common Public License (CPL) and removes certain terms relating to litigations related to patents.〔In section 7, this sentence is in CPL 1.0, but not EPL 1.0: ''"If Recipient institutes patent litigation against a Contributor with respect to a patent applicable to software (including a cross-claim or counterclaim in a lawsuit), then any patent licenses granted by that Contributor to such Recipient under this Agreement shall terminate as of the date such litigation is filed."''〕 The Eclipse Public License is designed to be a business-friendly free software license and features weaker copyleft provisions than contemporary licenses such as the GNU General Public License (GPL). The receiver of EPL-licensed programs can use, modify, copy and distribute the work and modified versions, in some cases being obligated to release their own changes.〔(【引用サイトリンク】 Eclipse Public License - v 1.0 )〕 The EPL is approved by the Open Source Initiative (OSI)〔(【引用サイトリンク】 OSI approval )〕 and is listed as a free software license by the Free Software Foundation (FSF).〔 Discussion of a new version of the EPL began in May, 2013.〔(【引用サイトリンク】 Community Review of the Eclipse Public License )〕 == Compatibility == The EPL 1.0 is not compatible with the GPL, and a work created by combining a work licensed under the GPL with a work licensed under the EPL cannot be lawfully distributed.〔 The GPL requires that "(distributed work ) that ... contains or is derived from the () Program ... be licensed as a whole ... under the terms of (GPL )", and that the distributor not "impose any further restrictions on the recipients' exercise of the rights granted". The EPL, however, requires that anyone distributing the work grant every recipient a license to any patents that they might hold that cover the modifications they have made.〔 Because this is a "further restriction" on the recipients, distribution of such a combined work does not satisfy the GPL.〔(【引用サイトリンク】 Various Licenses and Comments about Them )〕 The EPL, in addition, contains a patent retaliation clause, which is incompatible with the GPL for the same reasons.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eclipse Public License」の詳細全文を読む スポンサード リンク
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