The stable version of MRI 1.9.2 will be released soon. Let's compare the differences between the latest ruby and the legacy ruby.
Here this is the diff of the public methods of Kernel class on ruby 1.9.2dev and 1.8.7. I just used such command: ruby -ve 'puts Kernel.public_methods.sort'.
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| --- /tmp/187.txt 2010-04-15 14:01:45.000000000 -0700 | |
| +++ /tmp/192.txt 2010-04-15 14:01:33.000000000 -0700 | |
| @@ -1,4 +1,7 @@ | |
| -ruby 1.8.7 (2010-01-10 patchlevel 249) [i686-darwin9] | |
| +ruby 1.9.2dev (2010-04-02 trunk 27162) [i386-darwin9.8.0] | |
| +! | |
| +!= | |
| +!~ | |
| < | |
| <= | |
| <=> | |
| @@ -8,9 +11,12 @@ | |
| > | |
| >= | |
| Array | |
| +Complex | |
| Float | |
| Integer | |
| +Rational | |
| String | |
| +__callee__ | |
| __id__ | |
| __method__ | |
| __send__ | |
| @@ -22,17 +28,14 @@ | |
| autoload? | |
| binding | |
| block_given? | |
| -callcc | |
| caller | |
| catch | |
| -chomp | |
| -chomp! | |
| -chop | |
| -chop! | |
| class | |
| class_eval | |
| class_exec | |
| class_variable_defined? | |
| +class_variable_get | |
| +class_variable_set | |
| class_variables | |
| clone | |
| const_defined? | |
| @@ -40,6 +43,7 @@ | |
| const_missing | |
| const_set | |
| constants | |
| +define_singleton_method | |
| display | |
| dup | |
| enum_for | |
| @@ -55,15 +59,13 @@ | |
| format | |
| freeze | |
| frozen? | |
| -getc | |
| gets | |
| global_variables | |
| -gsub | |
| -gsub! | |
| hash | |
| -id | |
| include? | |
| included_modules | |
| +initialize_clone | |
| +initialize_dup | |
| inspect | |
| instance_eval | |
| instance_exec | |
| @@ -83,7 +85,6 @@ | |
| loop | |
| method | |
| method_defined? | |
| -method_missing | |
| methods | |
| module_eval | |
| module_exec | |
| @@ -103,28 +104,32 @@ | |
| protected_method_defined? | |
| protected_methods | |
| public_class_method | |
| +public_instance_method | |
| public_instance_methods | |
| +public_method | |
| public_method_defined? | |
| public_methods | |
| +public_send | |
| putc | |
| puts | |
| raise | |
| rand | |
| readline | |
| readlines | |
| +remove_class_variable | |
| require | |
| +require_relative | |
| respond_to? | |
| -scan | |
| +respond_to_missing? | |
| select | |
| send | |
| set_trace_func | |
| +singleton_class | |
| singleton_methods | |
| sleep | |
| -split | |
| +spawn | |
| sprintf | |
| srand | |
| -sub | |
| -sub! | |
| syscall | |
| system | |
| taint | |
| @@ -132,12 +137,13 @@ | |
| tap | |
| test | |
| throw | |
| -to_a | |
| to_enum | |
| to_s | |
| trace_var | |
| trap | |
| -type | |
| +trust | |
| untaint | |
| untrace_var | |
| +untrust | |
| +untrusted? | |
| warn |
