diff --git a/.travis.yml b/.travis.yml
index 15a86ed..f812bcb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,39 +1,35 @@
 language: ruby
 dist: trusty
-os:
-  - linux
-  - osx
-
-rvm:
-  - 1.8.7
-  - 1.9.3
-  - 2.0.0
-  - 2.1.10
-  - 2.2.8
-  - 2.3.8
-  - 2.4.6
-  - 2.5.5
-  - 2.6.3
-  - ruby-head
-
 matrix:
   fast_finish: true
-  allow_failures:
-    - rvm: ruby-head
-
-  exclude:
+  include:
+    - os: linux
+      rvm: 3.2
     - os: osx
-      rvm: 1.9.3
+      rvm: 3.2
+    - os: linux
+      rvm: 3.1
     - os: osx
-      rvm: 2.0.0
-
+      rvm: 3.1
+    - os: linux
+      rvm: 3.0
     - os: osx
-      rvm: 1.8.7
-
-#  include:
-#    - os: osx
-#      rvm: 1.9.3
-#      before_script: rvm install ruby-1.9.3 # not binary
-#    - os: osx
-#      rvm: 2.0.0
-#      before_script: rvm install ruby-2.0.0 # not binary
+      rvm: 3.0
+    - os: linux
+      rvm: 2.7
+    - os: osx
+      rvm: 2.7
+    - os: linux
+      rvm: 2.6
+    - os: osx
+      rvm: 2.6
+    - os: linux
+      rvm: 2.5
+    - os: osx
+      rvm: 2.5
+    - os: linux
+      rvm: 2.4
+    - os: osx
+      rvm: 2.4
+    - os: linux
+      rvm: 2.3
diff --git a/Gemfile b/Gemfile
index c36df53..af81c0e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,12 +14,12 @@ if RUBY_VERSION < '1.9' || defined?(JRUBY_VERSION)
   gem "ruby-debug-base", :platforms =>  [:jruby, *mries('18')]
 end
 
-if RUBY_VERSION && RUBY_VERSION >= "1.9"
-  gem "ruby-debug-base19x", ">= 0.11.32", :platforms => mries('19')
+if RUBY_VERSION && RUBY_VERSION >= "1.9" && RUBY_VERSION < "2.0"
+  gem "ruby-debug-base19x", ">= 0.11.32"
 end
 
 if RUBY_VERSION && RUBY_VERSION >= "2.0"
-  gem "debase", "~> 0.2", ">= 0.2.2", :platforms => mries('20', '21', '22', '23', '24', '25')
+  gem "debase", "~> 0.2", ">= 0.2.9"
 end
 
 gemspec
diff --git a/README.md b/README.md
index 0125c3b..df07515 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,3 @@
-[![official JetBrains project](http://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 [![Gem Version](https://badge.fury.io/rb/ruby-debug-ide.svg)][gem]
 [![Build Status](https://travis-ci.org/ruby-debug/ruby-debug-ide.svg?branch=master)](https://travis-ci.org/ruby-debug/ruby-debug-ide)
 
diff --git a/Rakefile b/Rakefile
index a169aee..7a74d18 100644
--- a/Rakefile
+++ b/Rakefile
@@ -39,4 +39,55 @@ task :changelog, :since_c, :until_c do |t,args|
   end
 
   puts changelog_content
+end
+
+desc "Generates travis.yaml"
+task :gen_travis do
+  versions = []
+
+  def versions.add(major:, minor:, include_macos: true)
+    self << { major: major, minor: [minor], include_macos: include_macos }
+  end
+
+  versions.add major: '3.0', minor: 1
+  versions.add major: '2.7', minor: 3
+  versions.add major: '2.6', minor: 7
+  versions.add major: '2.5', minor: 9
+  versions.add major: '2.4', minor: 10
+  versions.add major: '2.3', minor: 8, include_macos: false
+  versions.add major: '2.2', minor: 10, include_macos: false
+  versions.add major: '2.1', minor: 10, include_macos: false
+  versions.add major: '2.0', minor: 0, include_macos: false
+  versions.add major: '1.9', minor: 3, include_macos: false
+  versions.add major: '1.8', minor: 7, include_macos: false
+
+  puts <<EOM
+language: ruby
+dist: trusty
+matrix:
+  fast_finish: true
+  include:
+EOM
+
+  loop do
+    found_some = false
+
+    versions.each do |version|
+      minor = version[:minor].pop
+      if minor
+        found_some = true
+        full_version = "#{version[:major]}.#{minor}"
+        puts <<EOM
+    - os: linux
+      rvm: #{full_version}
+EOM
+        puts <<EOM if version[:include_macos]
+    - os: osx
+      rvm: #{full_version}
+EOM
+      end
+    end
+
+    break unless found_some
+  end
 end
\ No newline at end of file
diff --git a/ext/mkrf_conf.rb b/ext/mkrf_conf.rb
index 478dca6..290936a 100644
--- a/ext/mkrf_conf.rb
+++ b/ext/mkrf_conf.rb
@@ -1,13 +1,6 @@
 install_dir = File.expand_path("../../../..", __FILE__)
-jruby = defined?(JRUBY_VERSION) || (defined?(RUBY_ENGINE) && 'jruby' == RUBY_ENGINE)
-rbx = defined?(RUBY_ENGINE) && 'rbx' == RUBY_ENGINE
 
-def already_installed(dep)
-  !Gem::DependencyInstaller.new(:domain => :local).find_gems_with_sources(dep).empty? ||
-  !Gem::DependencyInstaller.new(:domain => :local,:prerelease => true).find_gems_with_sources(dep).empty?    
-end
-
-unless jruby || rbx
+if !defined?(RUBY_ENGINE) || RUBY_ENGINE == 'ruby'
   require 'rubygems'
   require 'rubygems/command.rb'
   require 'rubygems/dependency.rb'
@@ -15,14 +8,14 @@ def already_installed(dep)
 
   begin
     Gem::Command.build_args = ARGV
-    rescue NoMethodError
+  rescue NoMethodError
   end
 
   if RUBY_VERSION < "1.9"
     dep = Gem::Dependency.new("ruby-debug-base", '>=0.10.4')
   elsif RUBY_VERSION < '2.0'
     dep = Gem::Dependency.new("ruby-debug-base19x", '>=0.11.30.pre15')
-  else    
+  else
     dep = Gem::Dependency.new("debase", '> 0')
   end
 
@@ -39,7 +32,7 @@ def already_installed(dep)
       puts e.backtrace.join "\n  "
       exit(1)
     end
-  end unless dep.nil? || already_installed(dep)
+  end unless dep.nil? || dep.matching_specs.any?
 end
 
 # create dummy rakefile to indicate success
diff --git a/lib/ruby-debug-ide/thread_alias.rb b/lib/ruby-debug-ide/thread_alias.rb
index 4e10a7b..4b2054d 100644
--- a/lib/ruby-debug-ide/thread_alias.rb
+++ b/lib/ruby-debug-ide/thread_alias.rb
@@ -8,7 +8,7 @@ def do_thread_alias
         end
 
         Object.const_set :OldThread, ::Thread
-        Object.send :remove_const, :Thread
+        Object.__send__ :remove_const, :Thread
         Object.const_set :Thread, ::Debugger::DebugThread
       end
 
@@ -18,9 +18,9 @@ def undo_thread_alias
           return
         end
 
-        Object.send :remove_const, :Thread
+        Object.__send__ :remove_const, :Thread
         Object.const_set :Thread, ::OldThread
-        Object.send :remove_const, :OldThread
+        Object.__send__ :remove_const, :OldThread
       end
     end
   end
diff --git a/lib/ruby-debug-ide/version.rb b/lib/ruby-debug-ide/version.rb
index 5caee7d..22185b9 100755
--- a/lib/ruby-debug-ide/version.rb
+++ b/lib/ruby-debug-ide/version.rb
@@ -1,3 +1,3 @@
 module Debugger
-  IDE_VERSION='0.7.1.beta3'
+  IDE_VERSION='0.7.5'
 end
diff --git a/lib/ruby-debug-ide/xml_printer.rb b/lib/ruby-debug-ide/xml_printer.rb
index b009fdd..9dcf0c9 100644
--- a/lib/ruby-debug-ide/xml_printer.rb
+++ b/lib/ruby-debug-ide/xml_printer.rb
@@ -208,13 +208,13 @@ def exec_with_timeout(sec, error_message)
     end
 
     def exec_with_allocation_control(value, exec_method, overflow_message_type)
-      return value.send exec_method unless Debugger.trace_to_s
+      return value.__send__ exec_method unless Debugger.trace_to_s
 
       memory_limit = Debugger.debugger_memory_limit
       time_limit = Debugger.inspect_time_limit
 
       if defined?(JRUBY_VERSION) || RUBY_VERSION < '2.0' || memory_limit <= 0
-        return exec_with_timeout(time_limit * 1e-3, "Timeout: evaluation of #{exec_method} took longer than #{time_limit}ms.") { value.send exec_method }
+        return exec_with_timeout(time_limit * 1e-3, "Timeout: evaluation of #{exec_method} took longer than #{time_limit}ms.") { value.__send__ exec_method }
       end
 
       require 'objspace'
@@ -245,7 +245,7 @@ def exec_with_allocation_control(value, exec_method, overflow_message_type)
           end
         end
         trace_point.enable
-        result = value.send exec_method
+        result = value.__send__ exec_method
         trace_queue << result
         trace_point.disable
       end
diff --git a/ruby-debug-ide.gemspec b/ruby-debug-ide.gemspec
index 47af820..be0917f 100644
--- a/ruby-debug-ide.gemspec
+++ b/ruby-debug-ide.gemspec
@@ -30,8 +30,8 @@ EOF
 
   spec.version = RUBY_DEBUG_IDE_VERSION
 
-  spec.author = "Markus Barchfeld, Martin Krauskopf, Mark Moseley, JetBrains RubyMine Team"
-  spec.email = "rubymine-feedback@jetbrains.com"
+  spec.author = "Markus Barchfeld, Martin Krauskopf, Mark Moseley, Alexandr Evstigneev"
+  spec.email = "hurricup@gmail.com"
   spec.license = "MIT"
   spec.platform = Gem::Platform::RUBY
   spec.require_path = "lib"
@@ -44,5 +44,4 @@ EOF
 
   spec.required_ruby_version = '>= 1.8.2'
   spec.date = DateTime.now
-  spec.rubyforge_project = 'debug-commons'
 end