Patrick Smacchia [MVP C#]

Scott Hanselman just published a blog post where he used NDepend to see changes in the code of .NET 3.5 SP1 beta (that has just been released). Let’s expose the exhaustive list of differences:

Summary:

# IL instructions:    8 598 933 to 8 589 008      (-9 925   -0.1%)

# Assemblies:    112

# Namespaces:    919 to 929      (+10   +1.1%)

# Types:    39 988 to 40 402      (+414   +1%)

# Methods:    387 421 to 385 253      (-2 168   -0.6%)

# Fields:    241 567 to 246 320      (+4 753   +2%)

636 new public methods:  

SELECT METHODS WHERE IsPublic AND WasAdded

57 new public types:  

SELECT TYPES WHERE IsPublic AND WasAdded

3.137 public methods removed (this number is biased by the fact that a public methods can be declared in an internal types): 

SELECT METHODS WHERE IsPublic AND WasRemoved

8 public types removed: 

SELECT TYPES WHERE IsPublic AND WasRemoved

5.623 methods where code was changed: 

SELECT METHODS WHERE CodeWasChanged

2.024 types where code was changed: 

SELECT TYPES WHERE CodeWasChanged

The list of assemblies we consider is made of 112 assemblies. 

Here is a 9000x1200 poster where methods where code was changed are located in blue (we degraded the quality to have a 2MB image file instead of 13MB):

And here is a list of coupling update for assemblies:

1. A blue cell means: {the X Assembly} is using {the Y assembly}.
2. Weight of a blue cell means: W types of the {the X Assembly} are used by {the Y assembly}.
3. A green cell means: {the Y Assembly} is used by {the X assembly}.
4. Weight of a green cell means: W types of the {the Y Assembly} are using {the X assembly}.
5. A black cell means: {the X Assembly} and {the Y assembly} are using each others.
6. A red tick on a cell means: the coupling has been changed.
7. A red tick with a plus on a cell means: the dependency has been created.
8. A red tick with a minus on a cell means: the dependency has been removed.
9. An assembly name underlined means that its code has been changed.