System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594 41.13 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608 41.14 Errors Version number literals create VersionNumber objects which follow the specifications of semantic versioning, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594 41.13 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608 41.14 Errors Version number literals create VersionNumber objects which follow the specifications of semantic versioning, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

might block the rendering of the page. Tornado supports this out of the box with static content versioning. To use this feature, use the static_url method in your templates rather than typing the URL of on Python 2. • Configurable.initialize now supports positional arguments. tornado.web • Key versioning support for cookie signing. cookie_secret application setting can now contain a dict of valid keys RequestHandler.static_url now have an additional key- word argument include_version to suppress the url versioning. • StaticFileHandler now reads its file in chunks, which will reduce memory fragmentation. •

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648 42.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669 42.15 Errors Version number literals create VersionNumber objects which follow the specifications of semantic versioning, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648 42.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669 42.15 Errors Version number literals create VersionNumber objects which follow the specifications of semantic versioning, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648 42.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669 42.15 Errors Version number literals create VersionNumber objects which follow the specifications of semantic versioning, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677 43.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701 43.15 Errors Version num- ber literals create VersionNumber objects which follow the specifications of semantic versioning 2.0.0-rc2, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675 43.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 699 43.15 Errors Version num- ber literals create VersionNumber objects which follow the specifications of semantic versioning 2.0.0-rc2, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674 43.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 698 43.15 Errors Version num- ber literals create VersionNumber objects which follow the specifications of semantic versioning 2.0.0-rc2, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 674 43.14 Versioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 698 43.15 Errors Version num- ber literals create VersionNumber objects which follow the specifications of semantic versioning 2.0.0-rc2, and therefore are composed of major, minor and patch numeric values, followed by pre-release must not be used as the actual version number of anything, as they are invalid in the semantic versioning scheme. Besides being used for the VERSION constant, VersionNumber objects are widely used in