diff --git a/.clang-tidy b/.clang-tidy
index 70ee773..035549d 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -88,8 +88,12 @@
   -modernize-return-braced-init-list,
   -modernize-type-traits,
   -modernize-use-auto,
+  -modernize-use-constraints,
+  -modernize-use-designated-initializers,
   -modernize-use-emplace,
+  -modernize-use-integer-sign-comparison,
   -modernize-use-nodiscard,
+  -modernize-use-ranges,
   -modernize-use-trailing-return-type,
   -modernize-use-transparent-functors,
   misc-*,
diff --git a/verible/common/analysis/lint-rule-status.cc b/verible/common/analysis/lint-rule-status.cc
index eb36ab6..7a79a42 100644
--- a/verible/common/analysis/lint-rule-status.cc
+++ b/verible/common/analysis/lint-rule-status.cc
@@ -60,7 +60,7 @@
 bool AutoFix::AddEdits(const std::set<ReplacementEdit> &new_edits) {
   // Check for conflicts
   for (const auto &edit : new_edits) {
-    if (edits_.find(edit) != edits_.end()) {
+    if (edits_.contains(edit)) {
       return false;
     }
   }
diff --git a/verible/common/analysis/matcher/bound-symbol-manager.cc b/verible/common/analysis/matcher/bound-symbol-manager.cc
index 7c2030c..e34dce5 100644
--- a/verible/common/analysis/matcher/bound-symbol-manager.cc
+++ b/verible/common/analysis/matcher/bound-symbol-manager.cc
@@ -27,7 +27,7 @@
 namespace matcher {
 
 bool BoundSymbolManager::ContainsSymbol(const std::string &id) const {
-  return bound_symbols_.find(id) != bound_symbols_.end();
+  return bound_symbols_.contains(id);
 }
 
 const Symbol *BoundSymbolManager::FindSymbol(const std::string &id) const {
diff --git a/verible/verilog/analysis/checkers/forbidden-macro-rule.cc b/verible/verilog/analysis/checkers/forbidden-macro-rule.cc
index 34c3da1..3410e52 100644
--- a/verible/verilog/analysis/checkers/forbidden-macro-rule.cc
+++ b/verible/verilog/analysis/checkers/forbidden-macro-rule.cc
@@ -73,7 +73,7 @@
   if (MacroCallMatcher().Matches(symbol, &manager)) {
     if (const verible::SyntaxTreeLeaf *leaf = manager.GetAsLeaf("name")) {
       const auto &imm = InvalidMacrosMap();
-      if (imm.find(std::string(leaf->get().text())) != imm.end()) {
+      if (imm.contains(std::string(leaf->get().text()))) {
         violations_.insert(
             verible::LintViolation(leaf->get(), FormatReason(*leaf), context));
       }
diff --git a/verible/verilog/analysis/checkers/forbidden-symbol-rule.cc b/verible/verilog/analysis/checkers/forbidden-symbol-rule.cc
index 04558ea..4f832c1 100644
--- a/verible/verilog/analysis/checkers/forbidden-symbol-rule.cc
+++ b/verible/verilog/analysis/checkers/forbidden-symbol-rule.cc
@@ -81,7 +81,7 @@
   if (IdMatcher().Matches(symbol, &manager)) {
     if (const verible::SyntaxTreeLeaf *leaf = manager.GetAsLeaf("name")) {
       const auto &ism = InvalidSymbolsMap();
-      if (ism.find(std::string(leaf->get().text())) != ism.end()) {
+      if (ism.contains(std::string(leaf->get().text()))) {
         violations_.insert(
             verible::LintViolation(leaf->get(), FormatReason(*leaf), context));
       }
diff --git a/verible/verilog/analysis/checkers/struct-union-name-style-rule.cc b/verible/verilog/analysis/checkers/struct-union-name-style-rule.cc
index cd31f80..0217374 100644
--- a/verible/verilog/analysis/checkers/struct-union-name-style-rule.cc
+++ b/verible/verilog/analysis/checkers/struct-union-name-style-rule.cc
@@ -106,13 +106,13 @@
             "Section with unit names need to start with digit", context));
         return;
       }
-      if (exceptions_.find(std::string(ns)) != exceptions_.end()) {
+      if (exceptions_.contains(std::string(ns))) {
         continue;  // number + unit exception found
       }
       const auto &alpha =
           std::find_if(ns.begin(), ns.end(), absl::ascii_isalpha);
       const auto ns_substr = std::string(alpha, ns.end());
-      if (exceptions_.find(ns_substr) == exceptions_.end()) {
+      if (!exceptions_.contains(ns_substr)) {
         violations_.insert(
             LintViolation(*identifier_leaf,
                           "found digit followed by unit that is "
diff --git a/verible/verilog/analysis/checkers/truncated-numeric-literal-rule.cc b/verible/verilog/analysis/checkers/truncated-numeric-literal-rule.cc
index 298bc6c..c6a17c2 100644
--- a/verible/verilog/analysis/checkers/truncated-numeric-literal-rule.cc
+++ b/verible/verilog/analysis/checkers/truncated-numeric-literal-rule.cc
@@ -18,6 +18,7 @@
 #include <cctype>
 #include <cmath>
 #include <cstddef>
+#include <numbers>
 #include <set>
 #include <string>
 #include <string_view>
@@ -136,11 +137,13 @@
       // without fully parsing the decimal number ?
       double v;
       if (absl::SimpleAtod(literal, &v) && !std::isinf(v)) {
-        return std::max(129, static_cast<int>(ceil(log(v) / log(2))));
+        return std::max(129,
+                        static_cast<int>(ceil(log(v) / std::numbers::ln2)));
       }
 
       // Uh, more than 300-ish decimal digits ? ... rough estimation it is.
-      return ceil((literal.length() - 1) * log(10) / log(2));
+      return ceil((literal.length() - 1) * std::numbers::ln10 /
+                  std::numbers::ln2);
     } break;
     default:
       break;  // unexpected base
diff --git a/verible/verilog/analysis/checkers/void-cast-rule.cc b/verible/verilog/analysis/checkers/void-cast-rule.cc
index c9d9216..658d45a 100644
--- a/verible/verilog/analysis/checkers/void-cast-rule.cc
+++ b/verible/verilog/analysis/checkers/void-cast-rule.cc
@@ -98,7 +98,7 @@
   if (FunctionMatcher().Matches(symbol, &manager)) {
     if (const verible::SyntaxTreeLeaf *function_id = manager.GetAsLeaf("id")) {
       const auto &bfs = ForbiddenFunctionsSet();
-      if (bfs.find(std::string(function_id->get().text())) != bfs.end()) {
+      if (bfs.contains(std::string(function_id->get().text()))) {
         violations_.insert(LintViolation(function_id->get(),
                                          FormatReason(*function_id), context));
       }
diff --git a/verible/verilog/analysis/flow-tree.cc b/verible/verilog/analysis/flow-tree.cc
index c5e2c23..1f28aea 100644
--- a/verible/verilog/analysis/flow-tree.cc
+++ b/verible/verilog/analysis/flow-tree.cc
@@ -139,8 +139,7 @@
   }
   auto macro_iterator = conditional_iterator + 1;
   auto macro_identifier = macro_iterator->text();
-  if (conditional_macro_id_.find(macro_identifier) ==
-      conditional_macro_id_.end()) {
+  if (!conditional_macro_id_.contains(macro_identifier)) {
     conditional_macro_id_[macro_identifier] = conditional_macros_counter_;
     conditional_macros_.push_back(macro_iterator);
     conditional_macros_counter_++;
diff --git a/verible/verilog/analysis/verilog-linter-configuration.cc b/verible/verilog/analysis/verilog-linter-configuration.cc
index 4703127..42ed8f4 100644
--- a/verible/verilog/analysis/verilog-linter-configuration.cc
+++ b/verible/verilog/analysis/verilog-linter-configuration.cc
@@ -163,7 +163,7 @@
     // same configuration file, warn the user about it.
     // NOTE: ignore producing a warning if there is no configuration, just
     // disabing/enabling
-    if (!setting.configuration.empty() && rules.count(*rule_iter)) {
+    if (!setting.configuration.empty() && rules.contains(*rule_iter)) {
       absl::StrAppend(error, error->empty() ? "" : "\n", kRepeatedFlagMessage,
                       " \"", rule_name, "\" = ", setting.configuration);
       parsed_correctly = false;
diff --git a/verible/verilog/formatting/token-annotator.cc b/verible/verilog/formatting/token-annotator.cc
index d66042f..29fe61e 100644
--- a/verible/verilog/formatting/token-annotator.cc
+++ b/verible/verilog/formatting/token-annotator.cc
@@ -263,8 +263,7 @@
   // If a closing ')', that ends the definition name.
   if (left.TokenEnum() == verilog_tokentype::PP_Identifier &&
       right.TokenEnum() == verilog_tokentype::PP_define_body &&
-      right.Text().substr(0, 2) == "``" &&
-      right.OriginalLeadingSpaces().empty()) {
+      right.Text().starts_with("``") && right.OriginalLeadingSpaces().empty()) {
     return {0, "Preserve spacing in concatenated name"};
   }
 
diff --git a/verible/verilog/parser/verilog-lexical-context.cc b/verible/verilog/parser/verilog-lexical-context.cc
index 740e3fe..445dff7 100644
--- a/verible/verilog/parser/verilog-lexical-context.cc
+++ b/verible/verilog/parser/verilog-lexical-context.cc
@@ -46,7 +46,7 @@
        TK_endprogram, TK_endproperty, TK_endsequence, TK_endchecker,
        TK_endconnectrules, TK_enddiscipline, TK_endnature, TK_endparamset,
        TK_join, TK_join_any, TK_join_none});
-  return keywords->find(token_enum) != keywords->end();
+  return keywords->contains(token_enum);
 }
 
 void KeywordLabelStateMachine::UpdateState(int token_enum) {
diff --git a/verible/verilog/preprocessor/verilog-preprocess.cc b/verible/verilog/preprocessor/verilog-preprocess.cc
index 39e816a..89ddb7d 100644
--- a/verible/verilog/preprocessor/verilog-preprocess.cc
+++ b/verible/verilog/preprocessor/verilog-preprocess.cc
@@ -535,7 +535,7 @@
   const auto &macro_name = *macro_name_extract.value();
   const bool negative_if = (*ifpos)->token_enum() == PP_ifndef;
   const auto &defs = preprocess_data_.macro_definitions;
-  const bool name_is_defined = defs.find(macro_name->text()) != defs.end();
+  const bool name_is_defined = defs.contains(macro_name->text());
   const bool condition_met = (name_is_defined ^ negative_if);
 
   if ((*ifpos)->token_enum() == PP_elsif) {