Merge pull request #10637 from ethereum/remove99

Remove version pragmas using `.99`.

docs/050-breaking-changes.rst

@@ -351,7 +351,7 @@ commandline compiler for linking):
 
     // This will not compile after 0.6.0
     // SPDX-License-Identifier: GPL-3.0
-    pragma solidity >=0.5.0 <0.5.99;
+    pragma solidity ^0.5.0;
 
     library OldLibrary {
         function someFunction(uint8 a) public returns(bool);
@@ -438,7 +438,7 @@ New version:
 ::
 
     // SPDX-License-Identifier: GPL-3.0
-    pragma solidity >=0.5.0 <0.5.99;
+    pragma solidity ^0.5.0;
     // This will not compile after 0.6.0
 
     contract OtherContract {

docs/abi-spec.rst

@@ -541,7 +541,7 @@ For example,
 ::
 
     // SPDX-License-Identifier: GPL-3.0
-    pragma solidity >=0.6.99 <0.9.0;
+    pragma solidity >=0.7.0 <0.9.0;
 
 
     contract Test {

docs/control-structures.rst

@@ -496,7 +496,7 @@ To obtain the previous behaviour, an ``unchecked`` block can be used:
 ::
 
     // SPDX-License-Identifier: GPL-3.0
-    pragma solidity >0.7.99;
+    pragma solidity ^0.8.0;
     contract C {
         function f(uint a, uint b) pure public returns (uint) {
             // This addition will wrap on underflow.