prep for 0.19-beta (#1695)

NEWS.md

@@ -12,7 +12,7 @@ adopters. Additional breaking changes may occur between development tags.
 The documentation has known gaps. When using a development tag, be prepared to
 peek into the JuMP source code and tests for examples of how things work.
 
-Latest development tag: `v0.19-alpha` (`] add JuMP#v0.19-alpha`).
+Latest development tag: `v0.19-beta` (`] add JuMP#v0.19-beta`).
 
 Breaking changes:
 

README.md

@@ -39,7 +39,13 @@ Our documentation includes an installation guide, quick-start guide, and referen
 
 [juliaopt-notebooks]: https://github.com/JuliaOpt/juliaopt-notebooks
 
-**Read about the upcoming transition to [MathOptInterface](https://github.com/JuliaOpt/MathOptInterface.jl) (MOI) and breaking changes in JuMP 0.19 [here](https://discourse.julialang.org/t/mathoptinterface-and-upcoming-breaking-changes-in-jump-0-19). The development version of JuMP (`master` branch) supports MOI and is ready for early adopters to test out. Be aware that the development version is alpha quality and is still undergoing breaking changes.**
+**Read about the upcoming transition to [MathOptInterface](https://github.com/JuliaOpt/MathOptInterface.jl)
+(MOI) and breaking changes in JuMP 0.19
+[here](https://discourse.julialang.org/t/mathoptinterface-and-upcoming-breaking-changes-in-jump-0-19).
+The development version of JuMP (`master` branch) supports MOI and is ready for
+early adopters to test out. Be aware that the development version is beta
+quality. No further breaking changes are planned, but they may still occur
+before the 0.19 release.**
 
 **Latest Release**: 0.18.4 (`release-0.18` branch)
   * [Documentation](http://www.juliaopt.org/JuMP.jl/0.18/)

docs/src/index.md

@@ -22,10 +22,9 @@
     This documentation is for the development branch of JuMP. JuMP is
     undergoing a [major
     transition](https://discourse.julialang.org/t/mathoptinterface-and-upcoming-breaking-changes-in-jump-0-19)
-    to MathOptInterface, and the documentation is in the process of being
-    rewritten. The development version is alpha-quality with breaking
-    changes still in progress. Please provide feedback and file issues if
-    you use this branch.
+    to MathOptInterface. The development version is beta quality and the
+    documentation has TODOs remaining before the release. Please provide
+    feedback and file issues if you use this branch.
 
 [JuMP](https://github.com/JuliaOpt/JuMP.jl) is a domain-specific modeling
 language for [mathematical