update README and docs on 0.7/1.0 support

README.md

@@ -39,6 +39,9 @@ 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 (MOI) and breaking changes in JuMP 0.19 [here](https://discourse.julialang.org/t/mathoptinterface-and-upcoming-breaking-changes-in-jump-0-19).**
+
+**The latest release of JuMP (based on MathProgBase) is not compatible with Julia 0.7 or 1.0. We encourage users to continue to use Julia 0.6 for a stable environment. The developmental version of JuMP (based on MOI) supports both Julia 0.6 and Julia 0.7 but is alpha-quality with breaking changes in still progress. See the Discourse [post](https://discourse.julialang.org/t/jump-and-julia-0-7-1-0) for more information on Julia 0.7/1.0 support.**
 
 **Latest Release**: 0.18.2 (`release-0.18` branch)
   * [Documentation](http://www.juliaopt.org/JuMP.jl/0.18/)
@@ -49,10 +52,6 @@ Our documentation includes an installation guide, quick-start guide, and referen
       [![JuMP](http://pkg.julialang.org/badges/JuMP_0.6.svg)](http://pkg.julialang.org/?pkg=JuMP&ver=0.6)
 
 
-**Read about the upcoming transition to MathOptInterface (MOI) and breaking changes in JuMP 0.19 [here](https://discourse.julialang.org/t/mathoptinterface-and-upcoming-breaking-changes-in-jump-0-19).**
-
-The `master` branch now includes these breaking changes, but **we do not yet recommend using this branch unless you are a JuMP developer or solver developer**.
-
 **Development version** (`master` branch):
   * [Documentation](http://www.juliaopt.org/JuMP.jl/latest/)
   * [Examples](https://github.com/JuliaOpt/JuMP.jl/tree/master/examples)

docs/src/index.md

@@ -19,13 +19,13 @@
 ```
 
 !!! warning
-    This documentation is for the development version of JuMP. JuMP is
+    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. We recommend using the development version only for (1)
-    developers of packages upstream or downstream of JuMP or (2) early adopters
-    willing to provide feedback and file issues.
+    rewritten. The development version is alpha-quality with breaking
+    changes still in progress. 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