Merge remote-tracking branch 'origin/develop' into breaking

docs/contracts/abstract-contracts.rst

@@ -13,7 +13,7 @@ This can be done by using the ``abstract`` keyword as shown in the following exa
 defined as abstract, because the function ``utterance()`` was defined, but no implementation was
 provided (no implementation body ``{ }`` was given).::
 
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     abstract contract Feline {
         function utterance() public virtual returns (bytes32);

docs/contracts/functions.rst

@@ -335,7 +335,7 @@ operations as long as there is enough gas passed on to it.
 
 ::
 
-    pragma solidity >0.6.1 <0.8.0;
+    pragma solidity >=0.6.2 <0.8.0;
 
     contract Test {
         // This function is called for all messages sent to

docs/contracts/inheritance.rst

@@ -154,7 +154,7 @@ A call to ``Final.destroy()`` will call ``Base2.destroy`` because we specify it
 explicitly in the final override, but this function will bypass
 ``Base1.destroy``. The way around this is to use ``super``::
 
-    pragma solidity >=0.4.22 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract owned {
         constructor() public { owner = msg.sender; }
@@ -204,7 +204,7 @@ use the ``override`` keyword in the function header as shown in this example:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract Base
     {
@@ -227,7 +227,7 @@ bases, it has to explicitly override it:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract Base1
     {
@@ -253,7 +253,7 @@ that already overrides all other functions.
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract A { function f() public pure{} }
     contract B is A {}
@@ -293,7 +293,7 @@ of the variable:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract A
     {
@@ -324,7 +324,7 @@ and the ``override`` keyword must be used in the overriding modifier:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract Base
     {
@@ -342,7 +342,7 @@ explicitly:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     contract Base1
     {
@@ -498,7 +498,7 @@ One area where inheritance linearization is especially important and perhaps not
 
 ::
 
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.4.22 <0.8.0;
 
     contract Base1 {
         constructor() public {}

docs/contracts/interfaces.rst

@@ -22,7 +22,7 @@ Interfaces are denoted by their own keyword:
 
 ::
 
-    pragma solidity >=0.5.0 <0.8.0;
+    pragma solidity >=0.6.2 <0.8.0;
 
     interface Token {
         enum TokenType { Fungible, NonFungible }
@@ -42,7 +42,7 @@ inheritance.
 
 ::
 
-    pragma solidity >0.6.1 <0.8.0;
+    pragma solidity >=0.6.2 <0.8.0;
 
     interface ParentA {
         function test() external returns (uint256);

docs/contracts/libraries.rst

@@ -47,12 +47,14 @@ more advanced example to implement a set).
 
 ::
 
-    pragma solidity >=0.4.22 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
 
     // We define a new struct datatype that will be used to
     // hold its data in the calling contract.
-    struct Data { mapping(uint => bool) flags; }
+    struct Data {
+        mapping(uint => bool) flags;
+    }
 
     library Set {
         // Note that the first parameter is of type "storage
@@ -123,7 +125,7 @@ custom types without the overhead of external function calls:
 
 ::
 
-    pragma solidity >=0.4.16 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
     struct bigint {
         uint[] limbs;
@@ -237,7 +239,7 @@ Its value can be obtained from Solidity using the ``.selector`` member as follow
 
 ::
 
-    pragma solidity >0.5.13 <0.8.0;
+    pragma solidity >=0.5.14 <0.8.0;
 
     library L {
         function f(uint256) external {}

docs/contracts/using-for.rst

@@ -29,7 +29,7 @@ may only be used inside a contract, not inside any of its functions.
 Let us rewrite the set example from the
 :ref:`libraries` in this way::
 
-    pragma solidity >=0.4.16 <0.8.0;
+    pragma solidity >=0.6.0 <0.8.0;
 
 
     // This is the same code as before, just without comments

docs/contracts/visibility-and-getters.rst

@@ -68,7 +68,7 @@ In the following example, ``D``, can call ``c.getData()`` to retrieve the value
 
 ::
 
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.4.16 <0.8.0;
 
     contract C {
         uint private data;
@@ -112,7 +112,7 @@ when they are declared.
 
 ::
 
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.4.16 <0.8.0;
 
     contract C {
         uint public data = 42;
@@ -151,7 +151,7 @@ to write a function, for example:
 
 ::
 
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.4.16 <0.8.0;
 
     contract arrayExample {
         // public state variable