C 2019 2021: Microsoft Visual
Paper prepared for academic/developer education purposes. All version numbers and performance claims based on publicly available Microsoft documentation and third-party benchmarks as of December 2021.
Understanding "Microsoft Visual C 2019 2021" requires distinguishing between the Integrated Development Environments (IDEs) used to write code and the Redistributable packages required to run finished software. While "Visual C 2021" is not a standalone product title, it refers to updates within the binary-compatible Visual C++ v14 ecosystem that spans from 2015 through 2022. The Evolution: Visual Studio 2019 to 2022
The transition from 2019 to the 2022 era (which covers the 2021 launch period) marked the most significant architectural shift in the suite’s history.
Architecture Shift: Visual Studio 2019 is a 32-bit application, which can bottleneck performance on massive enterprise projects due to memory limits. Visual Studio 2022, launched in late 2021, is natively 64-bit, allowing it to handle much larger solutions without crashing.
C++ Support: While 2019 supports early C++20 features, Visual Studio 2022 provides a full suite of tools for C++20 and introduced support for C++23 features in later updates.
IntelliCode: The AI-assisted coding feature in the 2022 version is more advanced, offering whole-line completions for C++ that were more limited in the 2019 edition. The Microsoft Visual C++ 2015-2022 Redistributable
Users often search for "2019 2021" because they need the runtime files to fix application errors like "MSVCP140.dll is missing.".
Binary Compatibility: Starting with Visual Studio 2015, all versions (2017, 2019, and 2022) are binary compatible. This means a single "2015-2022" package covers any application built with those versions. microsoft visual c 2019 2021
Naming Convention: Microsoft recently simplified the naming of these files to Visual C++ v14 to reflect this ongoing compatibility.
Downloading: It is highly recommended to only download these files from the official Microsoft website to ensure security and receive the most recent performance and reliability improvements. Comparison Table: 2019 vs. 2022 (2021 Launch) Latest Supported Visual C++ Redistributable Downloads
The "story" of Microsoft Visual C++ (MSVC) 2019–2021 is primarily about the transition from the "classic" development cycle to the modern era of and cross-platform compatibility. While 2019 and 2021 refer to specific versions of the Visual Studio IDE
(Integrated Development Environment), they share a common thread: binary compatibility 1. The 2019-2021 "Unified" Runtime
The most practical "story" for users is why you see "Visual C++ 2015-2019" or "2015-2022" in your programs list. Unlike older versions (2005, 2008, 2010), which were separate, Microsoft decided that all versions from 2015 onward would share the same Redistributable runtime The Good News:
This means you don't need a separate "2019" and "2021" installer; one modern package (v14x) covers everything released in that window. Why it matters: It prevents the "DLL Hell" of the past where a missing msvcp140.dll would break your favorite games or apps like OBS Studio Microsoft Learn 2. Visual Studio 2019: The Workhorse
Released in April 2019, this version became the industry standard for stability. C++20 Support: Paper prepared for academic/developer education purposes
By the end of its life cycle (version 16.11, released in late 2021), it added the /std:c++20
flag, finally allowing developers to use major new language features like Coroutines Free Access: It maintained the Community Edition
, allowing students and small teams to build professional software for free. Microsoft Learn 3. The 2021 Shift (Visual Studio 2022) In late 2021, Microsoft released Visual Studio 2022
. This was a "good story" for performance because it was the first version to be 64-bit (x64)
Here’s a solid, practical piece of code written for Microsoft Visual C++ 2019 (and compatible with 2021 / later MSVC toolsets).
It demonstrates modern C++ (C++17/20 features available in MSVC) with:
// logger.h #pragma once#include <memory> #include <string> #include <chrono> #include <fstream> #include <mutex> // logger
enum class LogLevel Info, Warning, Error ;
class Logger public: static Logger& instance(); // Singleton access void log(LogLevel level, const std::string& message); void setOutputFile(const std::string& path); // optional file logging
private: Logger(); ~Logger(); std::string levelToString(LogLevel level) const; std::string currentTimestamp() const;
std::unique_ptr<std::ofstream> fileStream; std::mutex mtx;
;
// logger.cpp
#include "logger.h"
#include <iostream>
#include <iomanip>
#include <ctime>
Logger& Logger::instance()
static Logger instance;
return instance;
Logger::Logger() = default;
Logger::~Logger() = default;
void Logger::setOutputFile(const std::string& path)
std::lock_guard<std::mutex> lock(mtx);
fileStream = std::make_unique<std::ofstream>(path, std::ios::app);
if (!fileStream->is_open())
std::cerr << "Warning: Could not open log file: " << path << std::endl;
fileStream.reset();
void Logger::log(LogLevel level, const std::string& message)
std::lock_guard<std::mutex> lock(mtx);
std::string formatted = "[" + currentTimestamp() + "] " +
levelToString(level) + ": " + message;
// Console output
std::cout << formatted << std::endl;
// File output if available
if (fileStream && fileStream->is_open())
(*fileStream) << formatted << std::endl;
fileStream->flush();
std::string Logger::levelToString(LogLevel level) const
switch (level)
case LogLevel::Info: return "INFO";
case LogLevel::Warning: return "WARN";
case LogLevel::Error: return "ERROR";
default: return "UNKNOWN";
std::string Logger::currentTimestamp() const
auto now = std::chrono::system_clock::now();
auto now_c = std::chrono::system_clock::to_time_t(now);
auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(
now.time_since_epoch()) % 1000;
std::tm now_tm;
localtime_s(&now_tm, &now_c); // MSVC secure version
std::ostringstream oss;
oss << std::put_time(&now_tm, "%Y-%m-%d %H:%M:%S")
<< '.' << std::setfill('0') << std::setw(3) << ms.count();
return oss.str();
// main.cpp – example usage
#include "logger.h"
#include <thread>
#include <vector>
void workerTask(int id)
Logger::instance().log(LogLevel::Info, "Worker " + std::to_string(id) + " started");
std::this_thread::sleep_for(std::chrono::milliseconds(100));
Logger::instance().log(LogLevel::Info, "Worker " + std::to_string(id) + " finished");
int main()
Logger::instance().setOutputFile("app.log");
Logger::instance().log(LogLevel::Info, "Application starting");
std::vector<std::thread> threads;
for (int i = 1; i <= 5; ++i)
threads.emplace_back(workerTask, i);
for (auto& t : threads)
t.join();
Logger::instance().log(LogLevel::Warning, "This is a warning example");
Logger::instance().log(LogLevel::Error, "This is an error example");
Logger::instance().log(LogLevel::Info, "Application finished");
return 0;
You have two easy methods to verify this specific component.
cl /EHsc /std:c++17 /Fe:logger_app.exe main.cpp logger.cpp
Or in Visual Studio 2019/2022:
At its core, MSVC is the proprietary compiler for the C, C++, and C++/CLI programming languages. It is the engine behind countless Windows applications, from high-performance triple-A video games to complex financial trading software. The 2019 version introduced significant improvements in conformance to the C++20 standard, bringing developers closer to feature parity with GCC and Clang. This allowed developers to utilize concepts, ranges, and coroutines earlier than ever before.
In 2020 and 2021, Microsoft brought AddressSanitizer to Windows. Originally a Clang/GCC tool, ASan catches memory errors (buffer overflows, use-after-free) at runtime. Integrating this into MSVC was a massive move toward creating safer, more secure C++ applications on Windows.