Drop support for MRI Ruby 2.5 and 2.6 (EOL) (#1218)

* ci: Stop testing 2.5 and 2.6 They are EOL. * docs: Update references to old ruby versions in our docs We use Ruby 3.1 in our bug report template, and reference the 2.7.6 version of docs elsewhere. There is no particular rationale as to why I used two different versions here. * build: Bump target rubocop version We are dropping support for MRI 2.5 and 2.6, but maintaining support for jruby (which is only compatible with 2.6 at this time). So, for now, we bump our target rubocop version to 2.6. * feat!: Bump required ruby version to 2.6 across everything 2.5 and 2.6 are officially EOL, so we bump the required version. You might be asking "if 2.6 is EOL, why aren't we bumping to 2.7"? The answer is because we are dropping official support for _MRI_ 2.6, but we will still make a best-effort attempt to support it for JRuby. That project has not reached 2.7 compatibility yet and we feel it's still worth trying to maintain for that community. However, it is indeed best-effort support, and while this constraint means that MRI 2.6 will be able to _install_ these gems, it does not imply _support_ for them on that runtime. * feat!: Remove `Random.bytes` compatibility layer Now that we have removed support for Ruby 2.5 and 2.6, we can remove the indirection layer we kept for `Random.bytes`. This helps to future-proof us as well, since `Random::DEFAULT` is deprecated in Ruby 3.0+. * docs: Clarify support policy around 2.6.8 and jruby Per a conversation in slack, we still wish to deprecate support for MRI ruby `2.6`, even though we must technically maintain compatibility if we wish to support jruby. We will provide jruby support on a best-effort basis. Co-authored-by: Robert <[email protected]>
open-telemetry · May 4, 2022 · 38b083a · 38b083a
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diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -26,8 +26,8 @@ what happened and what you expected with a link to the relevant portion of the s
 
 Operating system details: Linux, Ubuntu 20.04 LTS
 RUBY_ENGINE: "ruby"
-RUBY_VERSION: "2.5.3"
-RUBY_DESCRIPTION: "ruby 2.5.3p105 (2018-10-18 revision 65156) [x86_64-darwin19]"
+RUBY_VERSION: "3.1.1"
+RUBY_DESCRIPTION: "ruby 3.1.1p18 (2022-02-18 revision 53f5fc4236) [arm64-darwin21]"
 
 **Share a simplified reproduction if possible**
 

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -14,14 +14,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: Test Linux / Ruby 2.5
-            os: ubuntu-latest
-            ruby: "2.5"
-            flags: --include-simple --include-appraisal
-          - name: Test Linux / Ruby 2.6
-            os: ubuntu-latest
-            ruby: "2.6"
-            flags: --include-simple --include-appraisal
           - name: Test Linux / Ruby 2.7
             os: ubuntu-latest
             ruby: "2.7"

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
@@ -29,9 +29,9 @@ jobs:
       uses: github/codeql-action/init@v1
       with:
         tools: latest
-        
+
     - name: Autobuild
       uses: github/codeql-action/autobuild@v1
-      
+
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v1
diff --git a/.instrumentation_generator/instrumentation_generator.rb b/.instrumentation_generator/instrumentation_generator.rb
@@ -56,7 +56,7 @@ def add_to_instrumentation_all
     insert_into_file("#{instrumentation_all_path}/Gemfile", gemfile_text, after: "gemspec\n")
 
     gemspec_text = "\n  spec.add_dependency '#{instrumentation_gem_name}', '~> 0.0.0'"
-    insert_into_file("#{instrumentation_all_path}/opentelemetry-instrumentation-all.gemspec", gemspec_text, after: "spec.required_ruby_version = '>= 2.5.0'\n")
+    insert_into_file("#{instrumentation_all_path}/opentelemetry-instrumentation-all.gemspec", gemspec_text, after: "spec.required_ruby_version = '>= 2.6.0'\n")
 
     all_rb_text = "\nrequire '#{instrumentation_gem_name}'"
     insert_into_file("#{instrumentation_all_path}/lib/opentelemetry/instrumentation/all.rb", all_rb_text, after: "# SPDX-License-Identifier: Apache-2.0\n")

diff --git a/.instrumentation_generator/templates/gemspec.tt b/.instrumentation_generator/templates/gemspec.tt
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> <%= opentelemetry_version %>'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> <%= instrumentation_base_version %>'

diff --git a/api/.rubocop.yml b/api/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
 
 Lint/UnusedMethodArgument:
   Enabled: false

diff --git a/api/lib/opentelemetry/trace.rb b/api/lib/opentelemetry/trace.rb
@@ -13,17 +13,7 @@ module Trace
 
     CURRENT_SPAN_KEY = Context.create_key('current-span')
 
-    # Random number generator for generating IDs. This is an object that can
-    # respond to `#bytes` and uses the system PRNG. The current logic is
-    # compatible with Ruby 2.5 (which does not implement the `Random.bytes`
-    # class method) and with Ruby 3.0+ (which deprecates `Random::DEFAULT`).
-    # When we drop support for Ruby 2.5, this can simply be replaced with
-    # the class `Random`.
-    #
-    # @return [#bytes]
-    RANDOM = Random.respond_to?(:bytes) ? Random : Random::DEFAULT
-
-    private_constant :CURRENT_SPAN_KEY, :RANDOM
+    private_constant :CURRENT_SPAN_KEY
 
     # An invalid trace identifier, a 16-byte string with all zero bytes.
     INVALID_TRACE_ID = ("\0" * 16).b
@@ -37,7 +27,7 @@ module Trace
     # @return [String] a valid trace ID.
     def generate_trace_id
       loop do
-        id = RANDOM.bytes(16)
+        id = Random.bytes(16)
         return id unless id == INVALID_TRACE_ID
       end
     end
@@ -48,7 +38,7 @@ def generate_trace_id
     # @return [String] a valid span ID.
     def generate_span_id
       loop do
-        id = RANDOM.bytes(8)
+        id = Random.bytes(8)
         return id unless id == INVALID_SPAN_ID
       end
     end

diff --git a/api/opentelemetry-api.gemspec b/api/opentelemetry-api.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_development_dependency 'benchmark-ipsa', '~> 0.2.0'
   spec.add_development_dependency 'bundler', '>= 1.17'

diff --git a/common/.rubocop.yml b/common/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: '2.5.0'
+  TargetRubyVersion: '2.6.0'
 
 Bundler/OrderedGems:
   Exclude:

diff --git a/common/opentelemetry-common.gemspec b/common/opentelemetry-common.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
 

diff --git a/exporter/jaeger/.rubocop.yml b/exporter/jaeger/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
   Exclude:
     - "thrift/**/*"
     - "vendor/**/*"

diff --git a/exporter/jaeger/README.md b/exporter/jaeger/README.md
@@ -92,7 +92,7 @@ The collector exporter can be configured explicitly in code, as shown above, or
 | `ssl_verify_mode:` | `OTEL_RUBY_EXPORTER_JAEGER_SSL_VERIFY_PEER` or | `OpenSSL::SSL:VERIFY_PEER` |
 |                    | `OTEL_RUBY_EXPORTER_JAEGER_SSL_VERIFY_NONE`    |                            |
 
-`ssl_verify_mode:` parameter values should be flags for server certificate verification: `OpenSSL::SSL:VERIFY_PEER` and `OpenSSL::SSL:VERIFY_NONE` are acceptable. These values can also be set using the appropriately named environment variables as shown where `VERIFY_PEER` will take precedence over `VERIFY_NONE`.  Please see [the Net::HTTP docs](https://ruby-doc.org/stdlib-2.5.1/libdoc/net/http/rdoc/Net/HTTP.html#verify_mode) for more information about these flags.
+`ssl_verify_mode:` parameter values should be flags for server certificate verification: `OpenSSL::SSL:VERIFY_PEER` and `OpenSSL::SSL:VERIFY_NONE` are acceptable. These values can also be set using the appropriately named environment variables as shown where `VERIFY_PEER` will take precedence over `VERIFY_NONE`.  Please see [the Net::HTTP docs](https://ruby-doc.org/stdlib-2.7.6/libdoc/net/http/rdoc/Net/HTTP.html#verify_mode) for more information about these flags.
 
 ## How can I get involved?
 

diff --git a/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec b/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/exporter/otlp/.rubocop.yml b/exporter/otlp/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
   Exclude:
     - "lib/opentelemetry/proto/**/*"
     - "vendor/**/*"

diff --git a/exporter/otlp/README.md b/exporter/otlp/README.md
@@ -78,7 +78,7 @@ The collector exporter can be configured explicitly in code, or via environment
 | `ssl_verify_mode:`  | `OTEL_RUBY_EXPORTER_OTLP_SSL_VERIFY_PEER` or | `OpenSSL::SSL:VERIFY_PEER`          |
 |                     | `OTEL_RUBY_EXPORTER_OTLP_SSL_VERIFY_NONE`    |                                     |
 
-`ssl_verify_mode:` parameter values should be flags for server certificate verification: `OpenSSL::SSL:VERIFY_PEER` and `OpenSSL::SSL:VERIFY_NONE` are acceptable. These values can also be set using the appropriately named environment variables as shown where `VERIFY_PEER` will take precedence over `VERIFY_NONE`.  Please see [the Net::HTTP docs](https://ruby-doc.org/stdlib-2.5.1/libdoc/net/http/rdoc/Net/HTTP.html#verify_mode) for more information about these flags.
+`ssl_verify_mode:` parameter values should be flags for server certificate verification: `OpenSSL::SSL:VERIFY_PEER` and `OpenSSL::SSL:VERIFY_NONE` are acceptable. These values can also be set using the appropriately named environment variables as shown where `VERIFY_PEER` will take precedence over `VERIFY_NONE`.  Please see [the Net::HTTP docs](https://ruby-doc.org/stdlib-2.7.6/libdoc/net/http/rdoc/Net/HTTP.html#verify_mode) for more information about these flags.
 
 ## How can I get involved?
 

diff --git a/exporter/otlp/opentelemetry-exporter-otlp.gemspec b/exporter/otlp/opentelemetry-exporter-otlp.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'google-protobuf', '~> 3.19'
   spec.add_dependency 'googleapis-common-protos-types', '~> 1.3'

diff --git a/exporter/zipkin/.rubocop.yml b/exporter/zipkin/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
   Exclude:
     - "thrift/**/*"
     - "vendor/**/*"

diff --git a/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec b/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/instrumentation/.rubocop-examples.yml b/instrumentation/.rubocop-examples.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
 
 Bundler/OrderedGems:
   Exclude:

diff --git a/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec b/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec b/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-active_support', '~> 0.1'

diff --git a/instrumentation/active_job/.rubocop.yml b/instrumentation/active_job/.rubocop.yml
@@ -1,7 +1,7 @@
 AllCops:
   Exclude:
     - "example/active_job.rb"
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
 
 Bundler/OrderedGems:
   Exclude:

diff --git a/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec b/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/...n/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec b/...n/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec b/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec b/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/all/opentelemetry-instrumentation-all.gemspec b/instrumentation/all/opentelemetry-instrumentation-all.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-instrumentation-action_pack', '~> 0.1.4'
   spec.add_dependency 'opentelemetry-instrumentation-action_view', '~> 0.2.1'

diff --git a/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec b/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/base/.rubocop.yml b/instrumentation/base/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
 
 Bundler/OrderedGems:
   Exclude:

diff --git a/instrumentation/base/opentelemetry-instrumentation-base.gemspec b/instrumentation/base/opentelemetry-instrumentation-base.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
 

diff --git a/instrumentation/bunny/.rubocop.yml b/instrumentation/bunny/.rubocop.yml
@@ -1,5 +1,5 @@
 AllCops:
-  TargetRubyVersion: "2.5.0"
+  TargetRubyVersion: "2.6.0"
 
 Bundler/OrderedGems:
   Exclude:

diff --git a/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec b/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec b/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec b/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec b/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec b/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec b/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec b/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'

diff --git a/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec b/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/http/opentelemetry-instrumentation-http.gemspec b/instrumentation/http/opentelemetry-instrumentation-http.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.20.0'

diff --git a/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec b/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec
@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                ::Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 2.5.0'
+  spec.required_ruby_version = '>= 2.6.0'
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
   spec.add_dependency 'opentelemetry-common', '~> 0.19.3'