diff --git a/.rubocop.yml b/.rubocop.yml
index 8e5623a..419ea72 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -90,3 +90,320 @@ Style/Lambda:
 # Unclear why it's a good idea to give parameters semantically meaningless names
 Style/SingleLineBlockParams:
   Enabled: false
+
+Gemspec/AddRuntimeDependency: # new in 1.65
+  Enabled: true
+Gemspec/AttributeAssignment: # new in 1.77
+  Enabled: true
+Gemspec/DeprecatedAttributeAssignment: # new in 1.30
+  Enabled: true
+Gemspec/DevelopmentDependencies: # new in 1.44
+  Enabled: true
+Gemspec/RequireMFA: # new in 1.23
+  Enabled: true
+Layout/EmptyLinesAfterModuleInclusion: # new in 1.79
+  Enabled: true
+Layout/LineContinuationLeadingSpace: # new in 1.31
+  Enabled: true
+Layout/LineContinuationSpacing: # new in 1.31
+  Enabled: true
+Layout/LineEndStringConcatenationIndentation: # new in 1.18
+  Enabled: true
+Layout/SpaceBeforeBrackets: # new in 1.7
+  Enabled: true
+Lint/AmbiguousAssignment: # new in 1.7
+  Enabled: true
+Lint/AmbiguousOperatorPrecedence: # new in 1.21
+  Enabled: true
+Lint/AmbiguousRange: # new in 1.19
+  Enabled: true
+Lint/ArrayLiteralInRegexp: # new in 1.71
+  Enabled: true
+Lint/ConstantOverwrittenInRescue: # new in 1.31
+  Enabled: true
+Lint/ConstantReassignment: # new in 1.70
+  Enabled: true
+Lint/CopDirectiveSyntax: # new in 1.72
+  Enabled: true
+Lint/DataDefineOverride: # new in 1.85
+  Enabled: true
+Lint/DeprecatedConstants: # new in 1.8
+  Enabled: true
+Lint/DuplicateBranch: # new in 1.3
+  Enabled: true
+Lint/DuplicateMagicComment: # new in 1.37
+  Enabled: true
+Lint/DuplicateMatchPattern: # new in 1.50
+  Enabled: true
+Lint/DuplicateRegexpCharacterClassElement: # new in 1.1
+  Enabled: true
+Lint/DuplicateSetElement: # new in 1.67
+  Enabled: true
+Lint/EmptyBlock: # new in 1.1
+  Enabled: true
+Lint/EmptyClass: # new in 1.3
+  Enabled: true
+Lint/EmptyInPattern: # new in 1.16
+  Enabled: true
+Lint/HashNewWithKeywordArgumentsAsDefault: # new in 1.69
+  Enabled: true
+Lint/IncompatibleIoSelectWithFiberScheduler: # new in 1.21
+  Enabled: true
+Lint/ItWithoutArgumentsInBlock: # new in 1.59
+  Enabled: true
+Lint/LambdaWithoutLiteralBlock: # new in 1.8
+  Enabled: true
+Lint/LiteralAssignmentInCondition: # new in 1.58
+  Enabled: true
+Lint/MixedCaseRange: # new in 1.53
+  Enabled: true
+Lint/NoReturnInBeginEndBlocks: # new in 1.2
+  Enabled: true
+Lint/NonAtomicFileOperation: # new in 1.31
+  Enabled: true
+Lint/NumberedParameterAssignment: # new in 1.9
+  Enabled: true
+Lint/NumericOperationWithConstantResult: # new in 1.69
+  Enabled: true
+Lint/OrAssignmentToConstant: # new in 1.9
+  Enabled: true
+Lint/RedundantDirGlobSort: # new in 1.8
+  Enabled: true
+Lint/RedundantRegexpQuantifiers: # new in 1.53
+  Enabled: true
+Lint/RedundantTypeConversion: # new in 1.72
+  Enabled: true
+Lint/RefinementImportMethods: # new in 1.27
+  Enabled: true
+Lint/RequireRangeParentheses: # new in 1.32
+  Enabled: true
+Lint/RequireRelativeSelfPath: # new in 1.22
+  Enabled: true
+Lint/SharedMutableDefault: # new in 1.70
+  Enabled: true
+Lint/SuppressedExceptionInNumberConversion: # new in 1.72
+  Enabled: true
+Lint/SymbolConversion: # new in 1.9
+  Enabled: true
+Lint/ToEnumArguments: # new in 1.1
+  Enabled: true
+Lint/TripleQuotes: # new in 1.9
+  Enabled: true
+Lint/UnescapedBracketInRegexp: # new in 1.68
+  Enabled: true
+Lint/UnexpectedBlockArity: # new in 1.5
+  Enabled: true
+Lint/UnmodifiedReduceAccumulator: # new in 1.1
+  Enabled: true
+Lint/UnreachablePatternBranch: # new in 1.85
+  Enabled: true
+Lint/UselessConstantScoping: # new in 1.72
+  Enabled: true
+Lint/UselessDefaultValueArgument: # new in 1.76
+  Enabled: true
+Lint/UselessDefined: # new in 1.69
+  Enabled: true
+Lint/UselessNumericOperation: # new in 1.66
+  Enabled: true
+Lint/UselessOr: # new in 1.76
+  Enabled: true
+Lint/UselessRescue: # new in 1.43
+  Enabled: true
+Lint/UselessRuby2Keywords: # new in 1.23
+  Enabled: true
+Metrics/CollectionLiteralLength: # new in 1.47
+  Enabled: true
+Naming/BlockForwarding: # new in 1.24
+  Enabled: true
+Naming/PredicateMethod: # new in 1.76
+  Enabled: true
+Security/CompoundHash: # new in 1.28
+  Enabled: true
+Security/IoMethods: # new in 1.22
+  Enabled: true
+Style/AmbiguousEndlessMethodDefinition: # new in 1.68
+  Enabled: true
+Style/ArgumentsForwarding: # new in 1.1
+  Enabled: true
+Style/ArrayIntersect: # new in 1.40
+  Enabled: true
+Style/ArrayIntersectWithSingleElement: # new in 1.81
+  Enabled: true
+Style/BitwisePredicate: # new in 1.68
+  Enabled: true
+Style/CollectionCompact: # new in 1.2
+  Enabled: true
+Style/CollectionQuerying: # new in 1.77
+  Enabled: true
+Style/CombinableDefined: # new in 1.68
+  Enabled: true
+Style/ComparableBetween: # new in 1.74
+  Enabled: true
+Style/ComparableClamp: # new in 1.44
+  Enabled: true
+Style/ConcatArrayLiterals: # new in 1.41
+  Enabled: true
+Style/DataInheritance: # new in 1.49
+  Enabled: true
+Style/DigChain: # new in 1.69
+  Enabled: true
+Style/DirEmpty: # new in 1.48
+  Enabled: true
+Style/DocumentDynamicEvalDefinition: # new in 1.1
+  Enabled: true
+Style/EmptyClassDefinition: # new in 1.84
+  Enabled: true
+Style/EmptyHeredoc: # new in 1.32
+  Enabled: true
+Style/EmptyStringInsideInterpolation: # new in 1.76
+  Enabled: true
+Style/EndlessMethod: # new in 1.8
+  Enabled: true
+Style/EnvHome: # new in 1.29
+  Enabled: true
+Style/ExactRegexpMatch: # new in 1.51
+  Enabled: true
+Style/FetchEnvVar: # new in 1.28
+  Enabled: true
+Style/FileEmpty: # new in 1.48
+  Enabled: true
+Style/FileNull: # new in 1.69
+  Enabled: true
+Style/FileOpen: # new in 1.85
+  Enabled: true
+Style/FileRead: # new in 1.24
+  Enabled: true
+Style/FileTouch: # new in 1.69
+  Enabled: true
+Style/FileWrite: # new in 1.24
+  Enabled: true
+Style/HashConversion: # new in 1.10
+  Enabled: true
+Style/HashExcept: # new in 1.7
+  Enabled: true
+Style/HashFetchChain: # new in 1.75
+  Enabled: true
+Style/HashSlice: # new in 1.71
+  Enabled: true
+Style/IfWithBooleanLiteralBranches: # new in 1.9
+  Enabled: true
+Style/InPatternThen: # new in 1.16
+  Enabled: true
+Style/ItAssignment: # new in 1.70
+  Enabled: true
+Style/ItBlockParameter: # new in 1.75
+  Enabled: true
+Style/KeywordArgumentsMerging: # new in 1.68
+  Enabled: true
+Style/MagicCommentFormat: # new in 1.35
+  Enabled: true
+Style/MapCompactWithConditionalBlock: # new in 1.30
+  Enabled: true
+Style/MapIntoArray: # new in 1.63
+  Enabled: true
+Style/MapJoin: # new in 1.85
+  Enabled: true
+Style/MapToHash: # new in 1.24
+  Enabled: true
+Style/MapToSet: # new in 1.42
+  Enabled: true
+Style/MinMaxComparison: # new in 1.42
+  Enabled: true
+Style/ModuleMemberExistenceCheck: # new in 1.82
+  Enabled: true
+Style/MultilineInPatternThen: # new in 1.16
+  Enabled: true
+Style/NegatedIfElseCondition: # new in 1.2
+  Enabled: true
+Style/NegativeArrayIndex: # new in 1.84
+  Enabled: true
+Style/NestedFileDirname: # new in 1.26
+  Enabled: true
+Style/NilLambda: # new in 1.3
+  Enabled: true
+Style/NumberedParameters: # new in 1.22
+  Enabled: true
+Style/NumberedParametersLimit: # new in 1.22
+  Enabled: true
+Style/ObjectThen: # new in 1.28
+  Enabled: true
+Style/OneClassPerFile: # new in 1.85
+  Enabled: true
+Style/OpenStructUse: # new in 1.23
+  Enabled: true
+Style/OperatorMethodCall: # new in 1.37
+  Enabled: true
+Style/PartitionInsteadOfDoubleSelect: # new in 1.85
+  Enabled: true
+Style/PredicateWithKind: # new in 1.85
+  Enabled: true
+Style/QuotedSymbols: # new in 1.16
+  Enabled: true
+Style/ReduceToHash: # new in 1.85
+  Enabled: true
+Style/RedundantArgument: # new in 1.4
+  Enabled: true
+Style/RedundantArrayConstructor: # new in 1.52
+  Enabled: true
+Style/RedundantArrayFlatten: # new in 1.76
+  Enabled: true
+Style/RedundantConstantBase: # new in 1.40
+  Enabled: true
+Style/RedundantCurrentDirectoryInPath: # new in 1.53
+  Enabled: true
+Style/RedundantDoubleSplatHashBraces: # new in 1.41
+  Enabled: true
+Style/RedundantEach: # new in 1.38
+  Enabled: true
+Style/RedundantFilterChain: # new in 1.52
+  Enabled: true
+Style/RedundantFormat: # new in 1.72
+  Enabled: true
+Style/RedundantHeredocDelimiterQuotes: # new in 1.45
+  Enabled: true
+Style/RedundantInitialize: # new in 1.27
+  Enabled: true
+Style/RedundantInterpolationUnfreeze: # new in 1.66
+  Enabled: true
+Style/RedundantLineContinuation: # new in 1.49
+  Enabled: true
+Style/RedundantMinMaxBy: # new in 1.85
+  Enabled: true
+Style/RedundantRegexpArgument: # new in 1.53
+  Enabled: true
+Style/RedundantRegexpConstructor: # new in 1.52
+  Enabled: true
+Style/RedundantSelfAssignmentBranch: # new in 1.19
+  Enabled: true
+Style/RedundantStringEscape: # new in 1.37
+  Enabled: true
+Style/RedundantStructKeywordInit: # new in 1.85
+  Enabled: true
+Style/ReturnNilInPredicateMethodDefinition: # new in 1.53
+  Enabled: true
+Style/ReverseFind: # new in 1.84
+  Enabled: true
+Style/SafeNavigationChainLength: # new in 1.68
+  Enabled: true
+Style/SelectByKind: # new in 1.85
+  Enabled: true
+Style/SelectByRange: # new in 1.85
+  Enabled: true
+Style/SelectByRegexp: # new in 1.22
+  Enabled: true
+Style/SendWithLiteralMethodName: # new in 1.64
+  Enabled: true
+Style/SingleLineDoEndBlock: # new in 1.57
+  Enabled: true
+Style/StringChars: # new in 1.12
+  Enabled: true
+Style/SuperArguments: # new in 1.64
+  Enabled: true
+Style/SuperWithArgsParentheses: # new in 1.58
+  Enabled: true
+Style/SwapValues: # new in 1.1
+  Enabled: true
+Style/TallyMethod: # new in 1.85
+  Enabled: true
+Style/YAMLFileRead: # new in 1.53
+  Enabled: true
diff --git a/Dockerfile b/Dockerfile
index 9ad3961..d8cb4eb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 #FROM debian:bullseye-slim
-FROM ruby:3.0
+FROM ruby:3.3-slim AS base
 USER root
 
 RUN apt-get update 
@@ -10,13 +10,34 @@ RUN groupadd -g 40054 alma && \
     mkdir -p /opt/app && \
     chown -R alma:alma /opt/app 
 
-# Run everything else as the alma user
 WORKDIR /opt/app
 
-COPY --chown=alma Gemfile* ./
-RUN bundle install --system
-COPY --chown=alma . .
+FROM base AS development
 
+USER root
+
+# Install system packages needed to build gems with C extensions.
+RUN apt-get install -y --no-install-recommends \
+    g++ \
+    git \
+    make
+
+USER alma
+
+RUN gem install bundler --version 4.0.9
+COPY --chown=alma:alma Gemfile* ./
+RUN bundle install
+COPY --chown=alma:alma . .
+
+FROM base AS production
+
+# Copy the built codebase from the dev stage
+COPY --from=development --chown=alma /opt/app /opt/app
+COPY --from=development --chown=alma /usr/local/bundle /usr/local/bundle
+
+# Ensure the bundle is installed and the Gemfile.lock is synced.
+RUN bundle config set frozen 'true'
+RUN bundle install --local
 USER alma
 ENTRYPOINT ["/opt/app/bin/gobi"]
 #CMD ["help"]
diff --git a/Gemfile b/Gemfile
index 5e54e5a..43b8d2d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,5 @@
 source 'https://rubygems.org'
 
-gem 'aruba'
 gem 'date'
 gem 'getoptlong'
 gem 'mail'
@@ -9,6 +8,6 @@ gem 'nokogiri'
 gem 'rake'
 gem 'rspec'
 gem 'rspec_junit_formatter'
-gem 'rubocop', '~> 1.26.0', require: false
+gem 'rubocop', '~> 1.85.0', require: false
 gem 'rubocop-checkstyle_formatter', require: false
 gem 'thor', '~> 1.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index f2011db..046cca9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,74 +1,45 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    aruba (2.0.0)
-      bundler (>= 1.17, < 3.0)
-      childprocess (>= 2.0, < 5.0)
-      contracts (>= 0.16.0, < 0.18.0)
-      cucumber (>= 4.0, < 8.0)
-      rspec-expectations (~> 3.4)
-      thor (~> 1.0)
     ast (2.4.3)
-    builder (3.2.4)
-    childprocess (4.1.0)
-    contracts (0.17)
-    cucumber (7.1.0)
-      builder (~> 3.2, >= 3.2.4)
-      cucumber-core (~> 10.1, >= 10.1.0)
-      cucumber-create-meta (~> 6.0, >= 6.0.1)
-      cucumber-cucumber-expressions (~> 14.0, >= 14.0.0)
-      cucumber-gherkin (~> 22.0, >= 22.0.0)
-      cucumber-html-formatter (~> 17.0, >= 17.0.0)
-      cucumber-messages (~> 17.1, >= 17.1.1)
-      cucumber-wire (~> 6.2, >= 6.2.0)
-      diff-lcs (~> 1.4, >= 1.4.4)
-      mime-types (~> 3.3, >= 3.3.1)
-      multi_test (~> 0.1, >= 0.1.2)
-      sys-uname (~> 1.2, >= 1.2.2)
-    cucumber-core (10.1.1)
-      cucumber-gherkin (~> 22.0, >= 22.0.0)
-      cucumber-messages (~> 17.1, >= 17.1.1)
-      cucumber-tag-expressions (~> 4.1, >= 4.1.0)
-    cucumber-create-meta (6.0.4)
-      cucumber-messages (~> 17.1, >= 17.1.1)
-      sys-uname (~> 1.2, >= 1.2.2)
-    cucumber-cucumber-expressions (14.0.0)
-    cucumber-gherkin (22.0.0)
-      cucumber-messages (~> 17.1, >= 17.1.1)
-    cucumber-html-formatter (17.0.0)
-      cucumber-messages (~> 17.1, >= 17.1.0)
-    cucumber-messages (17.1.1)
-    cucumber-tag-expressions (4.1.0)
-    cucumber-wire (6.2.1)
-      cucumber-core (~> 10.1, >= 10.1.0)
-      cucumber-cucumber-expressions (~> 14.0, >= 14.0.0)
+    bigdecimal (4.1.2)
     date (3.2.2)
     diff-lcs (1.5.0)
-    ffi (1.15.5)
     getoptlong (0.1.1)
+    hana (1.3.7)
+    json (2.20.0)
+    json_schemer (2.5.0)
+      bigdecimal
+      hana (~> 1.3)
+      regexp_parser (~> 2.0)
+      simpleidn (~> 0.2)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     marc (1.1.1)
       rexml
       scrub_rb (>= 1.0.1, < 2)
       unf
-    mime-types (3.4.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2022.0105)
+    mcp (0.21.0)
+      json_schemer (>= 2.4)
     mini_mime (1.1.2)
-    multi_test (0.1.2)
-    nokogiri (1.13.3-x86_64-linux)
+    nokogiri (1.19.4-aarch64-linux-gnu)
       racc (~> 1.4)
-    parallel (1.27.0)
-    parser (3.3.10.0)
+    nokogiri (1.19.4-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.19.4-x86_64-linux-gnu)
+      racc (~> 1.4)
+    parallel (1.28.0)
+    parser (3.3.11.1)
       ast (~> 2.4.1)
       racc
-    prism (1.6.0)
-    racc (1.6.0)
+    prism (1.9.0)
+    racc (1.8.1)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.11.3)
-    rexml (3.2.5)
+    regexp_parser (2.12.0)
+    rexml (3.4.4)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -84,36 +55,40 @@ GEM
     rspec-support (3.11.0)
     rspec_junit_formatter (0.5.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (1.26.1)
+    rubocop (1.85.1)
+      json (~> 2.3)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
+      mcp (~> 0.6)
       parallel (~> 1.10)
-      parser (>= 3.1.0.0)
+      parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.16.0, < 2.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.49.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.48.0)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.49.1)
       parser (>= 3.3.7.2)
-      prism (~> 1.4)
+      prism (~> 1.7)
     rubocop-checkstyle_formatter (0.5.0)
       rubocop (>= 1.14.0)
     ruby-progressbar (1.13.0)
     scrub_rb (1.0.1)
-    sys-uname (1.2.2)
-      ffi (~> 1.1)
-    thor (1.2.1)
+    simpleidn (0.2.3)
+    thor (1.5.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.8)
-    unicode-display_width (2.6.0)
+    unicode-display_width (3.2.0)
+      unicode-emoji (~> 4.1)
+    unicode-emoji (4.2.0)
 
 PLATFORMS
   aarch64-linux
+  arm64-darwin-24
   x86_64-linux
 
 DEPENDENCIES
-  aruba
   date
   getoptlong
   mail
@@ -122,9 +97,9 @@ DEPENDENCIES
   rake
   rspec
   rspec_junit_formatter
-  rubocop (~> 1.26.0)
+  rubocop (~> 1.85.0)
   rubocop-checkstyle_formatter
   thor (~> 1.1)
 
 BUNDLED WITH
-   2.2.33
+  4.0.9
diff --git a/docker-compose.yml b/docker-compose.yml
index 7516827..f8f4926 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,8 +2,6 @@ services:
   app:
     build: . 
     command: watch --interval 600 
-    init: yes
+    init: true
     volumes:
       - ./:/opt/app:rw
-
-version: "3.8"
diff --git a/lib/gobi.rb b/lib/gobi.rb
index bb3df1b..aaa19a5 100644
--- a/lib/gobi.rb
+++ b/lib/gobi.rb
@@ -26,7 +26,7 @@ def self.set_dirs(directory = nil, outdir = nil, processed = nil)
   def self.watch!(directory = nil, outdir = nil, processed = nil, interval: 120)
     set_dirs(directory, outdir, processed)
     raise ArgumentError, "Watch directory '#{@input_dir}' is not a directory or symlink to a directory" \
-      unless File.directory?(@input_dir) || \
+      unless File.directory?(@input_dir) ||
         (File.symlink?(@input_dir) && File.directory?(File.readlink(@input_dir)))
 
     raise ArgumentError, 'interval must be a positive integer' \
@@ -114,7 +114,7 @@ def self.get_output_filename(provider, fname)
   def self.new_file?(provider, fname)
     file = get_output_filename(provider, fname)
     outputfile = "#{@out_dir}/#{File.basename(file)}"
-    return true unless File.exist?(outputfile)
+    true unless File.exist?(outputfile)
   end
 
   # Rubocop warnings due to logging statements. disabling