Yes, there have been notable developments in proximity fuse technology since their invention during World War II. One of the most significant advances has been the miniaturization of the technology, which has allowed proximity fuses to be used in a wider range of applications, including small arms ammunition and missile systems.

There has also been progress in the development of more sophisticated proximity fuses that use multiple sensors to detect and track the target, increasing accuracy and reliability. For example, some modern proximity fuses use a combination of radar, infrared, and acoustic sensors to detect the target and calculate its distance and velocity.

Another area of development has been the integration of proximity fuses with other technologies, such as GPS and remote control systems. This has enabled greater precision in targeting and has expanded the range of applications for proximity fuses, including in guided missile systems and unmanned aerial vehicles.

Overall, proximity fuses continue to be an important and evolving technology in modern warfare, and there are ongoing efforts to improve their performance and capabilities.
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