diff --git a/README b/README
index b8c9e09..f84b712 100644
--- a/README
+++ b/README
@@ -1,22 +1,13 @@
-Welcome to gmpy2 project!
--------------------------
-
-gmpy2 provides fast multiple-precision arithmetic to Python. gmpy2 is an
-optimized C extension that supports the GMP, MPFR, and MPC libraries.
-
-gmpy2 is based on the original gmpy module. gmpy2 adds support for correctly
-rounded multiple-precision real (using the MPFR library) and complex (using
-the MPC library) arithmetic.
+gmpy2 is an optimized, C-coded Python extension module that supports fast
+multiple-precision arithmetic.  gmpy2 is based on the original gmpy module.
+gmpy2 adds support for correctly rounded multiple-precision real arithmetic
+(using the MPFR library) and complex arithmetic (using the MPC library).
 
 The gmpy2 2.0.x series is a stable version that is only receiving bug fixes.
 The main development branch (2.1.x) was extensively refactored. The most
 significant changes are support for thread-safe contexts and context methods.
 
-gmpy2 is available at https://pypi.python.org/pypi/gmpy2
+gmpy2 is available at https://pypi.python.org/pypi/gmpy2/
 
 Documentation is available at https://gmpy2.readthedocs.io/en/latest/
 
-To install a development version of gmpy2 2.1.x, just clone or copy
-the repository and follow the instructions in the INSTALL file. Detailed
-instructions for building on Windows using the MSYS2/MINGW-W64 tool chain
-can be found in msys2_build.txt
diff --git a/docs/intro.rst b/docs/intro.rst
index 4fada7a..7f123fb 100644
--- a/docs/intro.rst
+++ b/docs/intro.rst
@@ -37,15 +37,10 @@ gmpy2 Versions
 This manual documents the two major versions of gmpy2. Sections that are
 specific to a particular version will be identified as such.
 
-There are two versions of gmpy2. The 2.0 version is the stable release that
-only receives bug fixes and very minor updates. Version 2.1 is currently under
-active development and includes several new capabilities. Most gmpy2 2.0 code
-should run unchanged with gmpy2 2.1
-
-Enhancements in gmpy2 2.1
--------------------------
-
-The most significant changes in gmpy2 2.1 are:
+The 2.0 version is the stable release that only receives bug fixes and very
+minor updates. Version 2.1 is currently under active development and includes
+several new capabilities. Most gmpy2 2.0 code should run unchanged with
+gmpy2 2.1.
 
 Changes in gmpy2 2.1.0a1
 ------------------------
@@ -71,12 +66,16 @@ Changes in gmpy2 2.1.0a1
   true for the other gmpy2 types.
 * Support for Cython via the addition of a C-API and a gmpy2.pxd file.
 
+Changes in gmpy2 2.1.0a2
+------------------------
+
+* Revised build system.
+* Removal of unused code/macros.
+* Cleanup of Cython interface.
+
 Installation
 ============
 
-This section will be updated soon to reflect improved support of pip and the
-wheel format.
-
 Installing gmpy2 on Windows
 ---------------------------
 
@@ -101,8 +100,12 @@ later is required. MPC 1.0.1 or later is required for complex arithmetic.
 Short Instructions
 ^^^^^^^^^^^^^^^^^^
 
-If your system includes sufficiently recent versions of GMP, MPFR and MPC, and
-you have the development libraries installed, compiling should be as simple as:
+gmpy2 requires the development files for GMP, MPFR, and MPC. The actual package
+that provides these files varies between Linux distributions. Install "libmpc-dev"
+(or its equivalent) is usually sufficient.
+
+If your system has the development libraries installed, compiling should be as
+simple as:
 
 ::
 
@@ -114,6 +117,13 @@ If this fails, read on.
 Detailed Instructions
 ^^^^^^^^^^^^^^^^^^^^^
 
+Note: You really shouldn't need to do this. Unless you need the capabilities
+provided a newer GMP/MPFR/MPC, you should use the versions provided by your
+distribution.
+
+Note: The following instructions are currently out-of-date and will be revised
+for the next alpha release.
+
 If your Linux distribution does not support recent versions of GMP, MPFR and
 MPC, you will need to compile your own versions. To avoid any possible conflict
 with existing libraries on your system, it is recommended to use a directory